30749682 has 16 divisors (see below), whose sum is σ = 61637760. Its totient is φ = 10226832.

The previous prime is 30749681. The next prime is 30749683. The reversal of 30749682 is 28694703.

It is an interprime number because it is at equal distance from previous prime (30749681) and next prime (30749683).

It is a super-2 number, since 2×30749682² = 1891085886202248, 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 30749682.

It is not an unprimeable number, because it can be changed into a prime (30749681) 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, 2757 + ... + 8312.

It is an arithmetic number, because the mean of its divisors is an integer number (3852360).

Almost surely, 2^30749682 is an apocalyptic number.

30749682 is an abundant number, since it is smaller than the sum of its proper divisors (30888078).

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

30749682 is a wasteful number, since it uses less digits than its factorization.

30749682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11537.

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 30749682 is about 5545.2395800362. The cubic root of 30749682 is about 313.2902478356.

The spelling of 30749682 in words is "thirty million, seven hundred forty-nine thousand, six hundred eighty-two".