252363890 has 16 divisors (see below), whose sum is σ = 478163520. Its totient is φ = 95632560.

The previous prime is 252363883. The next prime is 252363913. The reversal of 252363890 is 98363252.

It is a Harshad number since it is a multiple of its sum of digits (38).

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 663926 + ... + 664305.

It is an arithmetic number, because the mean of its divisors is an integer number (29885220).

Almost surely, 2^252363890 is an apocalyptic number.

252363890 is a deficient number, since it is larger than the sum of its proper divisors (225799630).

252363890 is a wasteful number, since it uses less digits than its factorization.

252363890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1328257.

The product of its (nonzero) digits is 77760, while the sum is 38.

The square root of 252363890 is about 15885.9651894369. The cubic root of 252363890 is about 631.9398426557.

The spelling of 252363890 in words is "two hundred fifty-two million, three hundred sixty-three thousand, eight hundred ninety".