252381858 has 8 divisors (see below), whose sum is σ = 504763728. Its totient is φ = 84127284.

The previous prime is 252381851. The next prime is 252381889. The reversal of 252381858 is 858183252.

It is a sphenic number, since it is the product of 3 distinct primes.

252381858 is an admirable number.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (252381851) 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, 21031816 + ... + 21031827.

It is an arithmetic number, because the mean of its divisors is an integer number (63095466).

Almost surely, 2^252381858 is an apocalyptic number.

252381858 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

252381858 is a wasteful number, since it uses less digits than its factorization.

252381858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42063648.

The product of its digits is 153600, while the sum is 42.

The square root of 252381858 is about 15886.5307100071. The cubic root of 252381858 is about 631.9548400808.

The spelling of 252381858 in words is "two hundred fifty-two million, three hundred eighty-one thousand, eight hundred fifty-eight".