30890532 has 12 divisors (see below), whose sum is σ = 72077936. Its totient is φ = 10296840.

The previous prime is 30890521. The next prime is 30890533. The reversal of 30890532 is 23509803.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 30890532.

It is not an unprimeable number, because it can be changed into a prime (30890533) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1287094 + ... + 1287117.

Almost surely, 2^30890532 is an apocalyptic number.

It is an amenable number.

30890532 is an abundant number, since it is smaller than the sum of its proper divisors (41187404).

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

30890532 is a wasteful number, since it uses less digits than its factorization.

30890532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2574218 (or 2574216 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 30890532 is about 5557.9251524287. The cubic root of 30890532 is about 313.7678649955.

The spelling of 30890532 in words is "thirty million, eight hundred ninety thousand, five hundred thirty-two".