30904450 has 24 divisors (see below), whose sum is σ = 60509520. Its totient is φ = 11710800.

The previous prime is 30904441. The next prime is 30904457. The reversal of 30904450 is 5440903.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (30904457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15316 + ... + 17215.

It is an arithmetic number, because the mean of its divisors is an integer number (2521230).

Almost surely, 2^30904450 is an apocalyptic number.

30904450 is a deficient number, since it is larger than the sum of its proper divisors (29605070).

30904450 is a wasteful number, since it uses less digits than its factorization.

30904450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32562 (or 32557 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 30904450 is about 5559.1770973769. The cubic root of 30904450 is about 313.8149815407.

The spelling of 30904450 in words is "thirty million, nine hundred four thousand, four hundred fifty".