30497772 has 24 divisors (see below), whose sum is σ = 71636992. Its totient is φ = 10098000.

The previous prime is 30497759. The next prime is 30497801. The reversal of 30497772 is 27779403.

It is a super-2 number, since 2×30497772² = 1860228193927968, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30497772.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6604 + ... + 10227.

Almost surely, 2^30497772 is an apocalyptic number.

It is an amenable number.

30497772 is an abundant number, since it is smaller than the sum of its proper divisors (41139220).

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

30497772 is a wasteful number, since it uses less digits than its factorization.

30497772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16989 (or 16987 counting only the distinct ones).

The product of its (nonzero) digits is 74088, while the sum is 39.

The square root of 30497772 is about 5522.4787912676. The cubic root of 30497772 is about 312.4323804627.

The spelling of 30497772 in words is "thirty million, four hundred ninety-seven thousand, seven hundred seventy-two".