30772158 has 16 divisors (see below), whose sum is σ = 62588160. Its totient is φ = 10083416.

The previous prime is 30772151. The next prime is 30772163. The reversal of 30772158 is 85127703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30772151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43110 + ... + 43817.

It is an arithmetic number, because the mean of its divisors is an integer number (3911760).

Almost surely, 2^30772158 is an apocalyptic number.

30772158 is an abundant number, since it is smaller than the sum of its proper divisors (31816002).

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

30772158 is a wasteful number, since it uses less digits than its factorization.

30772158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86991.

The product of its (nonzero) digits is 11760, while the sum is 33.

The square root of 30772158 is about 5547.2658129929. The cubic root of 30772158 is about 313.3665607839.

The spelling of 30772158 in words is "thirty million, seven hundred seventy-two thousand, one hundred fifty-eight".