30128464 has 20 divisors (see below), whose sum is σ = 58837504. Its totient is φ = 14944608.

The previous prime is 30128453. The next prime is 30128473. The reversal of 30128464 is 46482103.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5382 + ... + 9445.

Almost surely, 2^30128464 is an apocalyptic number.

It is an amenable number.

30128464 is a deficient number, since it is larger than the sum of its proper divisors (28709040).

30128464 is a wasteful number, since it uses less digits than its factorization.

30128464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14962 (or 14956 counting only the distinct ones).

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

The square root of 30128464 is about 5488.9401527071. The cubic root of 30128464 is about 311.1661384903.

It can be divided in two parts, 3012 and 8464, that added together give a triangular number (11476 = T₁₅₁).

The spelling of 30128464 in words is "thirty million, one hundred twenty-eight thousand, four hundred sixty-four".