30904125408 has 72 divisors (see below), whose sum is σ = 94643895528. Its totient is φ = 9508960512.

The previous prime is 30904125403. The next prime is 30904125431. The reversal of 30904125408 is 80452140903.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30904125403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4123410 + ... + 4130897.

It is an arithmetic number, because the mean of its divisors is an integer number (1314498549).

Almost surely, 2^30904125408 is an apocalyptic number.

It is an amenable number.

30904125408 is an abundant number, since it is smaller than the sum of its proper divisors (63739770120).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30904125408 is a wasteful number, since it uses less digits than its factorization.

30904125408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8254336 (or 8254325 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The spelling of 30904125408 in words is "thirty billion, nine hundred four million, one hundred twenty-five thousand, four hundred eight".