252436449 has 16 divisors (see below), whose sum is σ = 341655552. Its totient is φ = 165766608.

The previous prime is 252436427. The next prime is 252436469. The reversal of 252436449 is 944634252.

It is not a de Polignac number, because 252436449 - 2¹² = 252432353 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (252436469) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94044 + ... + 96690.

It is an arithmetic number, because the mean of its divisors is an integer number (21353472).

Almost surely, 2^252436449 is an apocalyptic number.

It is an amenable number.

252436449 is a deficient number, since it is larger than the sum of its proper divisors (89219103).

252436449 is a wasteful number, since it uses less digits than its factorization.

252436449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3116.

The product of its digits is 207360, while the sum is 39.

The square root of 252436449 is about 15888.2487707110. The cubic root of 252436449 is about 632.0004014111. Note that the first 3 decimals are identical.

The spelling of 252436449 in words is "two hundred fifty-two million, four hundred thirty-six thousand, four hundred forty-nine".