30996576 has 144 divisors (see below), whose sum is σ = 100717344. Its totient is φ = 8957952.

The previous prime is 30996551. The next prime is 30996587. The reversal of 30996576 is 67569903.

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 63405 + ... + 63891.

It is an arithmetic number, because the mean of its divisors is an integer number (699426).

Almost surely, 2^30996576 is an apocalyptic number.

30996576 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30996576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50358672).

30996576 is an abundant number, since it is smaller than the sum of its proper divisors (69720768).

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

30996576 is a wasteful number, since it uses less digits than its factorization.

30996576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 533 (or 522 counting only the distinct ones).

The product of its (nonzero) digits is 306180, while the sum is 45.

The square root of 30996576 is about 5567.4568700619. The cubic root of 30996576 is about 314.1264991280.

The spelling of 30996576 in words is "thirty million, nine hundred ninety-six thousand, five hundred seventy-six".