30968038 has 32 divisors (see below), whose sum is σ = 49986720. Its totient is φ = 14365440.

The previous prime is 30968023. The next prime is 30968057. The reversal of 30968038 is 83086903.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a junction number, because it is equal to n+sod(n) for n = 30967988 and 30968006.

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, 178920 + ... + 179092.

It is an arithmetic number, because the mean of its divisors is an integer number (1562085).

Almost surely, 2^30968038 is an apocalyptic number.

30968038 is a deficient number, since it is larger than the sum of its proper divisors (19018682).

30968038 is a wasteful number, since it uses less digits than its factorization.

30968038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 30968038 is about 5564.8933502808. The cubic root of 30968038 is about 314.0300659541.

The spelling of 30968038 in words is "thirty million, nine hundred sixty-eight thousand, thirty-eight".