326445632 has 14 divisors (see below), whose sum is σ = 647790678. Its totient is φ = 163222784.

The previous prime is 326445607. The next prime is 326445661. The reversal of 326445632 is 236544623.

It can be written as a sum of positive squares in only one way, i.e., 239135296 + 87310336 = 15464^2 + 9344^2 .

It is a junction number, because it is equal to n+sod(n) for n = 326445592 and 326445601.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2550293 + ... + 2550420.

Almost surely, 2^326445632 is an apocalyptic number.

326445632 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

326445632 is a deficient number, since it is larger than the sum of its proper divisors (321345046).

326445632 is an equidigital number, since it uses as much as digits as its factorization.

326445632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5100725 (or 5100715 counting only the distinct ones).

The product of its digits is 103680, while the sum is 35.

The square root of 326445632 is about 18067.8065077087. The cubic root of 326445632 is about 688.5523327390.

The spelling of 326445632 in words is "three hundred twenty-six million, four hundred forty-five thousand, six hundred thirty-two".