16769920 has 32 divisors (see below), whose sum is σ = 40092120. Its totient is φ = 6707712.

The previous prime is 16769911. The next prime is 16769923. The reversal of 16769920 is 2996761.

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16769923) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12462 + ... + 13741.

Almost surely, 2^16769920 is an apocalyptic number.

16769920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16769920 is an abundant number, since it is smaller than the sum of its proper divisors (23322200).

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

16769920 is an equidigital number, since it uses as much as digits as its factorization.

16769920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26222 (or 26210 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 40.

The square root of 16769920 is about 4095.1092781512. The cubic root of 16769920 is about 255.9628852444.

It can be divided in two parts, 16769 and 920, that added together give a square (17689 = 133²).

The spelling of 16769920 in words is "sixteen million, seven hundred sixty-nine thousand, nine hundred twenty".