30308880 has 80 divisors (see below), whose sum is σ = 107385984. Its totient is φ = 6927360.

The previous prime is 30308879. The next prime is 30308893. The reversal of 30308880 is 8880303.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7341 + ... + 10700.

Almost surely, 2^30308880 is an apocalyptic number.

30308880 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30308880 is an abundant number, since it is smaller than the sum of its proper divisors (77077104).

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

30308880 is a wasteful number, since it uses less digits than its factorization.

30308880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18064 (or 18058 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 30308880 is about 5505.3501251056. The cubic root of 30308880 is about 311.7860136911.

The spelling of 30308880 in words is "thirty million, three hundred eight thousand, eight hundred eighty".