30839982 has 16 divisors (see below), whose sum is σ = 61754832. Its totient is φ = 10267520.

The previous prime is 30839969. The next prime is 30839999. The reversal of 30839982 is 28993803.

It is a super-2 number, since 2×30839982² = 1902208979520648, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

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, 3232 + ... + 8492.

It is an arithmetic number, because the mean of its divisors is an integer number (3859677).

Almost surely, 2^30839982 is an apocalyptic number.

30839982 is an abundant number, since it is smaller than the sum of its proper divisors (30914850).

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

30839982 is a wasteful number, since it uses less digits than its factorization.

30839982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6243.

The product of its (nonzero) digits is 93312, while the sum is 42.

The square root of 30839982 is about 5553.3757301303. The cubic root of 30839982 is about 313.5966191565.

The spelling of 30839982 in words is "thirty million, eight hundred thirty-nine thousand, nine hundred eighty-two".