30404745 has 36 divisors (see below), whose sum is σ = 61310340. Its totient is φ = 13898304.

The previous prime is 30404743. The next prime is 30404749. The reversal of 30404745 is 54740403.

It can be written as a sum of positive squares in 2 ways, for example, as 22127616 + 8277129 = 4704^2 + 2877^2 .

It is not a de Polignac number, because 30404745 - 2¹ = 30404743 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30404743) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 4690 + ... + 9099.

It is an arithmetic number, because the mean of its divisors is an integer number (1703065).

Almost surely, 2^30404745 is an apocalyptic number.

30404745 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

30404745 is an abundant number, since it is smaller than the sum of its proper divisors (30905595).

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

30404745 is a wasteful number, since it uses less digits than its factorization.

30404745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13814 (or 13804 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 27.

The square root of 30404745 is about 5514.0497821474. The cubic root of 30404745 is about 312.1143872982.

The spelling of 30404745 in words is "thirty million, four hundred four thousand, seven hundred forty-five".