30747474 has 24 divisors (see below), whose sum is σ = 68769792. Its totient is φ = 9918360.

The previous prime is 30747469. The next prime is 30747517. The reversal of 30747474 is 47474703.

It is an alternating number because its digits alternate between odd and even.

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 11 ways as a sum of consecutive naturals, for example, 26994 + ... + 28109.

It is an arithmetic number, because the mean of its divisors is an integer number (2865408).

Almost surely, 2^30747474 is an apocalyptic number.

30747474 is an abundant number, since it is smaller than the sum of its proper divisors (38022318).

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

30747474 is a wasteful number, since it uses less digits than its factorization.

30747474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55142 (or 55139 counting only the distinct ones).

The product of its (nonzero) digits is 65856, while the sum is 36.

The square root of 30747474 is about 5545.0404867774. The cubic root of 30747474 is about 313.2827489892.

The spelling of 30747474 in words is "thirty million, seven hundred forty-seven thousand, four hundred seventy-four".