252218674 has 4 divisors (see below), whose sum is σ = 378328014. Its totient is φ = 126109336.

The previous prime is 252218671. The next prime is 252218689. The reversal of 252218674 is 476812252.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 179372449 + 72846225 = 13393^2 + 8535^2 .

It is a super-2 number, since 2×252218674² = 127228519028636552, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (252218671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63054667 + ... + 63054670.

Almost surely, 2^252218674 is an apocalyptic number.

252218674 is a deficient number, since it is larger than the sum of its proper divisors (126109340).

252218674 is a wasteful number, since it uses less digits than its factorization.

252218674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126109339.

The product of its digits is 53760, while the sum is 37.

The square root of 252218674 is about 15881.3939564511. The cubic root of 252218674 is about 631.8186084813.

The spelling of 252218674 in words is "two hundred fifty-two million, two hundred eighteen thousand, six hundred seventy-four".