252420016 has 20 divisors (see below), whose sum is σ = 514804600. Its totient is φ = 119567232.

The previous prime is 252420001. The next prime is 252420043. The reversal of 252420016 is 610024252.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 414861 + ... + 415468.

It is an arithmetic number, because the mean of its divisors is an integer number (25740230).

Almost surely, 2^252420016 is an apocalyptic number.

It is an amenable number.

252420016 is an abundant number, since it is smaller than the sum of its proper divisors (262384584).

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

252420016 is a wasteful number, since it uses less digits than its factorization.

252420016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 830356 (or 830350 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 252420016 is about 15887.7316190827. The cubic root of 252420016 is about 631.9866872162.

Adding to 252420016 its reverse (610024252), we get a palindrome (862444268).

The spelling of 252420016 in words is "two hundred fifty-two million, four hundred twenty thousand, sixteen".