30988004 has 6 divisors (see below), whose sum is σ = 54229014. Its totient is φ = 15494000.

The previous prime is 30987961. The next prime is 30988007. The reversal of 30988004 is 40088903.

It can be written as a sum of positive squares in only one way, i.e., 29138404 + 1849600 = 5398^2 + 1360^2 .

It is not an unprimeable number, because it can be changed into a prime (30988007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3873497 + ... + 3873504.

It is an arithmetic number, because the mean of its divisors is an integer number (9038169).

Almost surely, 2^30988004 is an apocalyptic number.

It is an amenable number.

30988004 is a deficient number, since it is larger than the sum of its proper divisors (23241010).

30988004 is a wasteful number, since it uses less digits than its factorization.

30988004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7747005 (or 7747003 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 30988004 is about 5566.6869859909. The cubic root of 30988004 is about 314.0975395787.

The spelling of 30988004 in words is "thirty million, nine hundred eighty-eight thousand, four".