16922394 has 24 divisors (see below), whose sum is σ = 37657620. Its totient is φ = 5488128.

The previous prime is 16922393. The next prime is 16922401. The reversal of 16922394 is 49322961.

It can be written as a sum of positive squares in 2 ways, for example, as 16916769 + 5625 = 4113^2 + 75^2 .

It is not an unprimeable number, because it can be changed into a prime (16922393) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12039 + ... + 13370.

Almost surely, 2^16922394 is an apocalyptic number.

16922394 is an abundant number, since it is smaller than the sum of its proper divisors (20735226).

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

16922394 is a wasteful number, since it uses less digits than its factorization.

16922394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25454 (or 25451 counting only the distinct ones).

The product of its digits is 23328, while the sum is 36.

The square root of 16922394 is about 4113.6837506060. The cubic root of 16922394 is about 256.7362937730.

The spelling of 16922394 in words is "sixteen million, nine hundred twenty-two thousand, three hundred ninety-four".