30120404 has 12 divisors (see below), whose sum is σ = 53996628. Its totient is φ = 14692800.

The previous prime is 30120383. The next prime is 30120427. The reversal of 30120404 is 40402103.

It can be written as a sum of positive squares in 2 ways, for example, as 12040900 + 18079504 = 3470^2 + 4252^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91667 + ... + 91994.

It is an arithmetic number, because the mean of its divisors is an integer number (4499719).

Almost surely, 2^30120404 is an apocalyptic number.

It is an amenable number.

30120404 is a deficient number, since it is larger than the sum of its proper divisors (23876224).

30120404 is a wasteful number, since it uses less digits than its factorization.

30120404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183706 (or 183704 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 30120404 is about 5488.2058999276. The cubic root of 30120404 is about 311.1383881791.

Adding to 30120404 its reverse (40402103), we get a palindrome (70522507).

The spelling of 30120404 in words is "thirty million, one hundred twenty thousand, four hundred four".