646459362 has 12 divisors (see below), whose sum is σ = 1400661990. Its totient is φ = 215486448.

The previous prime is 646459351. The next prime is 646459403. The reversal of 646459362 is 263954646.

It can be written as a sum of positive squares in only one way, i.e., 402443721 + 244015641 = 20061^2 + 15621^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17957187 + ... + 17957222.

Almost surely, 2^646459362 is an apocalyptic number.

646459362 is an abundant number, since it is smaller than the sum of its proper divisors (754202628).

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

646459362 is a wasteful number, since it uses less digits than its factorization.

646459362 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35914417 (or 35914414 counting only the distinct ones).

The product of its digits is 933120, while the sum is 45.

The square root of 646459362 is about 25425.5651264628. The cubic root of 646459362 is about 864.6634002812.

The spelling of 646459362 in words is "six hundred forty-six million, four hundred fifty-nine thousand, three hundred sixty-two".