30621484 has 12 divisors (see below), whose sum is σ = 53638200. Its totient is φ = 15296288.

The previous prime is 30621473. The next prime is 30621499. The reversal of 30621484 is 48412603.

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, 2187 + ... + 8125.

It is an arithmetic number, because the mean of its divisors is an integer number (4469850).

Almost surely, 2^30621484 is an apocalyptic number.

It is an amenable number.

30621484 is a deficient number, since it is larger than the sum of its proper divisors (23016716).

30621484 is a wasteful number, since it uses less digits than its factorization.

30621484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7232 (or 7230 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 30621484 is about 5533.6682227976. The cubic root of 30621484 is about 312.8542636262.

The spelling of 30621484 in words is "thirty million, six hundred twenty-one thousand, four hundred eighty-four".