16890452 has 12 divisors (see below), whose sum is σ = 31297140. Its totient is φ = 7948416.

The previous prime is 16890451. The next prime is 16890479. The reversal of 16890452 is 25409861.

It can be written as a sum of positive squares in 2 ways, for example, as 14776336 + 2114116 = 3844^2 + 1454^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16890451) 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, 124127 + ... + 124262.

It is an arithmetic number, because the mean of its divisors is an integer number (2608095).

Almost surely, 2^16890452 is an apocalyptic number.

It is an amenable number.

16890452 is a deficient number, since it is larger than the sum of its proper divisors (14406688).

16890452 is a wasteful number, since it uses less digits than its factorization.

16890452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248410 (or 248408 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 16890452 is about 4109.7995084919. The cubic root of 16890452 is about 256.5746571500.

The spelling of 16890452 in words is "sixteen million, eight hundred ninety thousand, four hundred fifty-two".