16293920 has 24 divisors (see below), whose sum is σ = 38494764. Its totient is φ = 6517504.

The previous prime is 16293919. The next prime is 16293929. The reversal of 16293920 is 2939261.

It can be written as a sum of positive squares in 2 ways, for example, as 16289296 + 4624 = 4036^2 + 68^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (16293929) 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, 50759 + ... + 51078.

Almost surely, 2^16293920 is an apocalyptic number.

16293920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16293920 is an abundant number, since it is smaller than the sum of its proper divisors (22200844).

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

16293920 is a wasteful number, since it uses less digits than its factorization.

16293920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101852 (or 101844 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 16293920 is about 4036.5728037532. The cubic root of 16293920 is about 253.5178403492.

The spelling of 16293920 in words is "sixteen million, two hundred ninety-three thousand, nine hundred twenty".