30698940 has 48 divisors (see below), whose sum is σ = 91016352. Its totient is φ = 7704576.

The previous prime is 30698903. The next prime is 30698953. The reversal of 30698940 is 4989603.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14029 + ... + 16068.

It is an arithmetic number, because the mean of its divisors is an integer number (1896174).

Almost surely, 2^30698940 is an apocalyptic number.

30698940 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30698940 is an abundant number, since it is smaller than the sum of its proper divisors (60317412).

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

30698940 is a wasteful number, since it uses less digits than its factorization.

30698940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30126 (or 30124 counting only the distinct ones).

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

The square root of 30698940 is about 5540.6624152713. The cubic root of 30698940 is about 313.1178262587.

The spelling of 30698940 in words is "thirty million, six hundred ninety-eight thousand, nine hundred forty".