23157450 has 36 divisors (see below), whose sum is σ = 62217558. Its totient is φ = 6175200.

The previous prime is 23157443. The next prime is 23157467. The reversal of 23157450 is 5475132.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 16329681 + 6827769 = 4041^2 + 2613^2 .

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 25281 + ... + 26180.

Almost surely, 2^23157450 is an apocalyptic number.

23157450 is an abundant number, since it is smaller than the sum of its proper divisors (39060108).

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

23157450 is a wasteful number, since it uses less digits than its factorization.

23157450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51479 (or 51471 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 23157450 is about 4812.2188229548. The cubic root of 23157450 is about 285.0341602636.

The spelling of 23157450 in words is "twenty-three million, one hundred fifty-seven thousand, four hundred fifty".