10169820 has 96 divisors (see below), whose sum is σ = 32558400. Its totient is φ = 2633472.

The previous prime is 10169773. The next prime is 10169821. The reversal of 10169820 is 2896101.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10169821) 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, 19726 + ... + 20234.

It is an arithmetic number, because the mean of its divisors is an integer number (339150).

Almost surely, 2^10169820 is an apocalyptic number.

10169820 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 10169820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16279200).

10169820 is an abundant number, since it is smaller than the sum of its proper divisors (22388580).

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

10169820 is a wasteful number, since it uses less digits than its factorization.

10169820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564 (or 556 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 10169820 is about 3189.0155220695. The cubic root of 10169820 is about 216.6561835822.

The spelling of 10169820 in words is "ten million, one hundred sixty-nine thousand, eight hundred twenty".