252237494 has 32 divisors (see below), whose sum is σ = 398877696. Its totient is φ = 119508480.

The previous prime is 252237467. The next prime is 252237509. The reversal of 252237494 is 494732252.

It is a happy number.

It is a super-3 number, since 3×252237494³ (a number of 26 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 551714 + ... + 552170.

It is an arithmetic number, because the mean of its divisors is an integer number (12464928).

Almost surely, 2^252237494 is an apocalyptic number.

252237494 is a deficient number, since it is larger than the sum of its proper divisors (146640202).

252237494 is a wasteful number, since it uses less digits than its factorization.

252237494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 680.

The product of its digits is 120960, while the sum is 38.

The square root of 252237494 is about 15881.9864626564. The cubic root of 252237494 is about 631.8343230598.

The spelling of 252237494 in words is "two hundred fifty-two million, two hundred thirty-seven thousand, four hundred ninety-four".