16945320 has 64 divisors (see below), whose sum is σ = 58101120. Its totient is φ = 3873024.

The previous prime is 16945307. The next prime is 16945343. The reversal of 16945320 is 2354961.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9247 + ... + 10926.

It is an arithmetic number, because the mean of its divisors is an integer number (907830).

Almost surely, 2^16945320 is an apocalyptic number.

16945320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16945320 is an abundant number, since it is smaller than the sum of its proper divisors (41155800).

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

16945320 is a wasteful number, since it uses less digits than its factorization.

16945320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20194 (or 20190 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 16945320 is about 4116.4693609937. The cubic root of 16945320 is about 256.8521812421.

The spelling of 16945320 in words is "sixteen million, nine hundred forty-five thousand, three hundred twenty".