252311466 has 32 divisors (see below), whose sum is σ = 553565376. Its totient is φ = 76032000.

The previous prime is 252311461. The next prime is 252311489. The reversal of 252311466 is 664113252.

It is a super-2 number, since 2×252311466² = 127322151750138312, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (252311461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1386 + ... + 22506.

It is an arithmetic number, because the mean of its divisors is an integer number (17298918).

Almost surely, 2^252311466 is an apocalyptic number.

252311466 is an abundant number, since it is smaller than the sum of its proper divisors (301253910).

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

252311466 is a wasteful number, since it uses less digits than its factorization.

252311466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21318.

The product of its digits is 8640, while the sum is 30.

The square root of 252311466 is about 15884.3150938276. The cubic root of 252311466 is about 631.8960816294.

The spelling of 252311466 in words is "two hundred fifty-two million, three hundred eleven thousand, four hundred sixty-six".