30747388 has 12 divisors (see below), whose sum is σ = 61494832. Its totient is φ = 13177440.

The previous prime is 30747383. The next prime is 30747391. The reversal of 30747388 is 88374703.

30747388 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 30747388.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30747383) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 549033 + ... + 549088.

Almost surely, 2^30747388 is an apocalyptic number.

It is an amenable number.

30747388 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

30747388 is a wasteful number, since it uses less digits than its factorization.

30747388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1098132 (or 1098130 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 40.

The square root of 30747388 is about 5545.0327320946. The cubic root of 30747388 is about 313.2824569073.

The spelling of 30747388 in words is "thirty million, seven hundred forty-seven thousand, three hundred eighty-eight".