30986376 has 64 divisors (see below), whose sum is σ = 82684800. Its totient is φ = 9643008.

The previous prime is 30986369. The next prime is 30986377. The reversal of 30986376 is 67368903.

It is a super-2 number, since 2×30986376² = 1920310995226752, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30986377) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70365 + ... + 70803.

It is an arithmetic number, because the mean of its divisors is an integer number (1291950).

Almost surely, 2^30986376 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30986376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41342400).

30986376 is an abundant number, since it is smaller than the sum of its proper divisors (51698424).

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

30986376 is a wasteful number, since it uses less digits than its factorization.

30986376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 638 (or 634 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 42.

The square root of 30986376 is about 5566.5407570591. The cubic root of 30986376 is about 314.0920389582.

The spelling of 30986376 in words is "thirty million, nine hundred eighty-six thousand, three hundred seventy-six".