30645474 has 16 divisors (see below), whose sum is σ = 61427808. Its totient is φ = 10192352.

The previous prime is 30645437. The next prime is 30645479. The reversal of 30645474 is 47454603.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (30645479) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2667 + ... + 8270.

It is an arithmetic number, because the mean of its divisors is an integer number (3839238).

Almost surely, 2^30645474 is an apocalyptic number.

30645474 is an abundant number, since it is smaller than the sum of its proper divisors (30782334).

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

30645474 is a wasteful number, since it uses less digits than its factorization.

30645474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11409.

The product of its (nonzero) digits is 40320, while the sum is 33.

The square root of 30645474 is about 5535.8354383056. The cubic root of 30645474 is about 312.9359428229.

The spelling of 30645474 in words is "thirty million, six hundred forty-five thousand, four hundred seventy-four".