30516772 has 48 divisors (see below), whose sum is σ = 64802304. Its totient is φ = 12384000.

The previous prime is 30516767. The next prime is 30516779. The reversal of 30516772 is 27761503.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is not an unprimeable number, because it can be changed into a prime (30516779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16872 + ... + 18592.

It is an arithmetic number, because the mean of its divisors is an integer number (1350048).

Almost surely, 2^30516772 is an apocalyptic number.

It is an amenable number.

30516772 is an abundant number, since it is smaller than the sum of its proper divisors (34285532).

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

30516772 is a wasteful number, since it uses less digits than its factorization.

30516772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1780 (or 1778 counting only the distinct ones).

The product of its (nonzero) digits is 8820, while the sum is 31.

The square root of 30516772 is about 5524.1987654320. The cubic root of 30516772 is about 312.4972484024.

The spelling of 30516772 in words is "thirty million, five hundred sixteen thousand, seven hundred seventy-two".