652399446 has 16 divisors (see below), whose sum is σ = 1381551984. Its totient is φ = 204674304.

The previous prime is 652399337. The next prime is 652399469. The reversal of 652399446 is 644993256.

It is a super-2 number, since 2×652399446² = 851250074282213832, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 652399395 and 652399404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3197935 + ... + 3198138.

It is an arithmetic number, because the mean of its divisors is an integer number (86346999).

Almost surely, 2^652399446 is an apocalyptic number.

652399446 is an abundant number, since it is smaller than the sum of its proper divisors (729152538).

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

652399446 is a wasteful number, since it uses less digits than its factorization.

652399446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6396095.

The product of its digits is 1399680, while the sum is 48.

The square root of 652399446 is about 25542.1112283225. Note that the first 3 decimals coincide. The cubic root of 652399446 is about 867.3036907935.

The spelling of 652399446 in words is "six hundred fifty-two million, three hundred ninety-nine thousand, four hundred forty-six".