168769020 has 96 divisors (see below), whose sum is σ = 568512000. Its totient is φ = 36543744.

The previous prime is 168769019. The next prime is 168769021. The reversal of 168769020 is 20967861.

It is an interprime number because it is at equal distance from previous prime (168769019) and next prime (168769021).

It is a super-2 number, since 2×168769020² = 56965964223520800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 168769020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168769021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2595 + ... + 18554.

It is an arithmetic number, because the mean of its divisors is an integer number (5922000).

Almost surely, 2^168769020 is an apocalyptic number.

168769020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 168769020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (284256000).

168769020 is an abundant number, since it is smaller than the sum of its proper divisors (399742980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

168769020 is a wasteful number, since it uses less digits than its factorization.

168769020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21187 (or 21185 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 168769020 is about 12991.1131162807. The cubic root of 168769020 is about 552.6254855803.

It can be divided in two parts, 1687 and 69020, that added together give a palindrome (70707).

The spelling of 168769020 in words is "one hundred sixty-eight million, seven hundred sixty-nine thousand, twenty".