30900032 has 28 divisors (see below), whose sum is σ = 62979300. Its totient is φ = 15031296.

The previous prime is 30900013. The next prime is 30900043. The reversal of 30900032 is 23000903.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 23193856 + 7706176 = 4816^2 + 2776^2 .

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, 4157 + ... + 8892.

Almost surely, 2^30900032 is an apocalyptic number.

30900032 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

30900032 is an abundant number, since it is smaller than the sum of its proper divisors (32079268).

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

30900032 is a wasteful number, since it uses less digits than its factorization.

30900032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13098 (or 13088 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 17.

The square root of 30900032 is about 5558.7797222052. The cubic root of 30900032 is about 313.8000268372.

Adding to 30900032 its reverse (23000903), we get a palindrome (53900935).

The spelling of 30900032 in words is "thirty million, nine hundred thousand, thirty-two".