30404961 has 6 divisors (see below), whose sum is σ = 43918290. Its totient is φ = 20269968.

The previous prime is 30404953. The next prime is 30404971. The reversal of 30404961 is 16940403.

It can be written as a sum of positive squares in only one way, i.e., 26718561 + 3686400 = 5169^2 + 1920^2 .

It is not a de Polignac number, because 30404961 - 2³ = 30404953 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30404951) 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, 1689156 + ... + 1689173.

It is an arithmetic number, because the mean of its divisors is an integer number (7319715).

Almost surely, 2^30404961 is an apocalyptic number.

It is an amenable number.

30404961 is a deficient number, since it is larger than the sum of its proper divisors (13513329).

30404961 is a wasteful number, since it uses less digits than its factorization.

30404961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3378335 (or 3378332 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 30404961 is about 5514.0693684429. The cubic root of 30404961 is about 312.1151263993.

It can be divided in two parts, 3040 and 4961, that added together give a triangular number (8001 = T₁₂₆).

The spelling of 30404961 in words is "thirty million, four hundred four thousand, nine hundred sixty-one".