361531432 has 16 divisors (see below), whose sum is σ = 687420000. Its totient is φ = 178219440.

The previous prime is 361531351. The next prime is 361531447. The reversal of 361531432 is 234135163.

It is a self number, because there is not a number n which added to its sum of digits gives 361531432.

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, 317682 + ... + 318817.

It is an arithmetic number, because the mean of its divisors is an integer number (42963750).

Almost surely, 2^361531432 is an apocalyptic number.

It is an amenable number.

361531432 is a deficient number, since it is larger than the sum of its proper divisors (325888568).

361531432 is a wasteful number, since it uses less digits than its factorization.

361531432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636576 (or 636572 counting only the distinct ones).

The product of its digits is 6480, while the sum is 28.

The square root of 361531432 is about 19013.9799095297. The cubic root of 361531432 is about 712.3859635694.

Adding to 361531432 its reverse (234135163), we get a palindrome (595666595).

The spelling of 361531432 in words is "three hundred sixty-one million, five hundred thirty-one thousand, four hundred thirty-two".