30904741 has 6 divisors (see below), whose sum is σ = 35950470. Its totient is φ = 26489736.

The previous prime is 30904733. The next prime is 30904751. The reversal of 30904741 is 14740903.

It can be written as a sum of positive squares in only one way, i.e., 15920100 + 14984641 = 3990^2 + 3871^2 .

It is not a de Polignac number, because 30904741 - 2³ = 30904733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30904711) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 315306 + ... + 315403.

It is an arithmetic number, because the mean of its divisors is an integer number (5991745).

Almost surely, 2^30904741 is an apocalyptic number.

It is an amenable number.

30904741 is a deficient number, since it is larger than the sum of its proper divisors (5045729).

30904741 is an equidigital number, since it uses as much as digits as its factorization.

30904741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 630723 (or 630716 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 30904741 is about 5559.2032702538. The cubic root of 30904741 is about 313.8159665107.

The spelling of 30904741 in words is "thirty million, nine hundred four thousand, seven hundred forty-one".