30969180 has 72 divisors (see below), whose sum is σ = 102486384. Its totient is φ = 7507200.

The previous prime is 30969179. The next prime is 30969199. The reversal of 30969180 is 8196903.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5841 + ... + 9800.

It is an arithmetic number, because the mean of its divisors is an integer number (1423422).

Almost surely, 2^30969180 is an apocalyptic number.

30969180 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30969180 is an abundant number, since it is smaller than the sum of its proper divisors (71517204).

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

30969180 is a wasteful number, since it uses less digits than its factorization.

30969180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15667 (or 15662 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 30969180 is about 5564.9959568718. The cubic root of 30969180 is about 314.0339260407.

The spelling of 30969180 in words is "thirty million, nine hundred sixty-nine thousand, one hundred eighty".