30080988 has 72 divisors (see below), whose sum is σ = 88058880. Its totient is φ = 8480160.

The previous prime is 30080983. The next prime is 30080989. The reversal of 30080988 is 88908003.

It is a super-2 number, since 2×30080988² = 1809731678112288, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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 (30080983) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19153 + ... + 20663.

It is an arithmetic number, because the mean of its divisors is an integer number (1223040).

Almost surely, 2^30080988 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30080988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44029440).

30080988 is an abundant number, since it is smaller than the sum of its proper divisors (57977892).

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

30080988 is a wasteful number, since it uses less digits than its factorization.

30080988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1607 (or 1602 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 30080988 is about 5484.6137512135. The cubic root of 30080988 is about 311.0026088566.

The spelling of 30080988 in words is "thirty million, eighty thousand, nine hundred eighty-eight".