30722532 has 12 divisors (see below), whose sum is σ = 71685936. Its totient is φ = 10240840.

The previous prime is 30722521. The next prime is 30722567. The reversal of 30722532 is 23522703.

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

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors.

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 3 ways as a sum of consecutive naturals, for example, 1280094 + ... + 1280117.

It is an arithmetic number, because the mean of its divisors is an integer number (5973828).

Almost surely, 2^30722532 is an apocalyptic number.

It is an amenable number.

30722532 is an abundant number, since it is smaller than the sum of its proper divisors (40963404).

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

30722532 is a wasteful number, since it uses less digits than its factorization.

30722532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2560218 (or 2560216 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 24.

The square root of 30722532 is about 5542.7909937143. The cubic root of 30722532 is about 313.1980156100.

The spelling of 30722532 in words is "thirty million, seven hundred twenty-two thousand, five hundred thirty-two".