30989370 has 32 divisors (see below), whose sum is σ = 75427200. Its totient is φ = 8146880.

The previous prime is 30989353. The next prime is 30989381. The reversal of 30989370 is 7398903.

It is a happy number.

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, 5145 + ... + 9404.

It is an arithmetic number, because the mean of its divisors is an integer number (2357100).

Almost surely, 2^30989370 is an apocalyptic number.

30989370 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30989370 is an abundant number, since it is smaller than the sum of its proper divisors (44437830).

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

30989370 is a wasteful number, since it uses less digits than its factorization.

30989370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14630.

The product of its (nonzero) digits is 40824, while the sum is 39.

The square root of 30989370 is about 5566.8096788017. The cubic root of 30989370 is about 314.1021548156.

The spelling of 30989370 in words is "thirty million, nine hundred eighty-nine thousand, three hundred seventy".