432618644 has 12 divisors (see below), whose sum is σ = 773191104. Its totient is φ = 211706904.

The previous prime is 432618631. The next prime is 432618673. The reversal of 432618644 is 446816234.

It is a super-2 number, since 2×432618644² = 374317782272797472, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 432618598 and 432618607.

It is a congruent number.

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, 1150394 + ... + 1150769.

It is an arithmetic number, because the mean of its divisors is an integer number (64432592).

Almost surely, 2^432618644 is an apocalyptic number.

It is an amenable number.

432618644 is a deficient number, since it is larger than the sum of its proper divisors (340572460).

432618644 is a wasteful number, since it uses less digits than its factorization.

432618644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2301214 (or 2301212 counting only the distinct ones).

The product of its digits is 110592, while the sum is 38.

The square root of 432618644 is about 20799.4866282800. The cubic root of 432618644 is about 756.3133108757.

The spelling of 432618644 in words is "four hundred thirty-two million, six hundred eighteen thousand, six hundred forty-four".