252264492 has 18 divisors (see below), whose sum is σ = 637668668. Its totient is φ = 84088152.

The previous prime is 252264487. The next prime is 252264497. The reversal of 252264492 is 294462252.

It is a happy number.

252264492 is a `hidden beast` number, since 2 + 5 + 2 + 2 + 644 + 9 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (252264487) and next prime (252264497).

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 7007347 = 252264492 / (2 + 5 + 2 + 2 + 6 + 4 + 4 + 9 + 2).

It is not an unprimeable number, because it can be changed into a prime (252264497) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3503638 + ... + 3503709.

Almost surely, 2^252264492 is an apocalyptic number.

It is an amenable number.

252264492 is an abundant number, since it is smaller than the sum of its proper divisors (385404176).

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

252264492 is a wasteful number, since it uses less digits than its factorization.

252264492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7007357 (or 7007352 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 252264492 is about 15882.8363965634. The cubic root of 252264492 is about 631.8568648506.

The spelling of 252264492 in words is "two hundred fifty-two million, two hundred sixty-four thousand, four hundred ninety-two".