16319745 has 64 divisors (see below), whose sum is σ = 33143040. Its totient is φ = 7547904.

The previous prime is 16319731. The next prime is 16319749. The reversal of 16319745 is 54791361.

It is not a de Polignac number, because 16319745 - 2⁵ = 16319713 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (16319749) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 29562 + ... + 30108.

It is an arithmetic number, because the mean of its divisors is an integer number (517860).

Almost surely, 2^16319745 is an apocalyptic number.

16319745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16319745 is an abundant number, since it is smaller than the sum of its proper divisors (16823295).

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

16319745 is a wasteful number, since it uses less digits than its factorization.

16319745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 591 (or 585 counting only the distinct ones).

The product of its digits is 22680, while the sum is 36.

The square root of 16319745 is about 4039.7704142686. The cubic root of 16319745 is about 253.6517070990.

The spelling of 16319745 in words is "sixteen million, three hundred nineteen thousand, seven hundred forty-five".