30980694 has 16 divisors (see below), whose sum is σ = 62043840. Its totient is φ = 10313160.

The previous prime is 30980693. The next prime is 30980759. The reversal of 30980694 is 49608903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30980693) 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, 2149 + ... + 8159.

It is an arithmetic number, because the mean of its divisors is an integer number (3877740).

Almost surely, 2^30980694 is an apocalyptic number.

30980694 is an abundant number, since it is smaller than the sum of its proper divisors (31063146).

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

30980694 is a wasteful number, since it uses less digits than its factorization.

30980694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6875.

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 30980694 is about 5566.0303628349. The cubic root of 30980694 is about 314.0728393368.

It can be divided in two parts, 309 and 80694, that added together give a triangular number (81003 = T₄₀₂).

The spelling of 30980694 in words is "thirty million, nine hundred eighty thousand, six hundred ninety-four".