30683297238 has 32 divisors (see below), whose sum is σ = 67194282240. Its totient is φ = 9263398560.

The previous prime is 30683297237. The next prime is 30683297251. The reversal of 30683297238 is 83279238603.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30683297237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 846370 + ... + 881877.

It is an arithmetic number, because the mean of its divisors is an integer number (2099821320).

Almost surely, 2^30683297238 is an apocalyptic number.

30683297238 is an abundant number, since it is smaller than the sum of its proper divisors (36510985002).

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

30683297238 is a wasteful number, since it uses less digits than its factorization.

30683297238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1728532.

The product of its (nonzero) digits is 2612736, while the sum is 51.

The spelling of 30683297238 in words is "thirty billion, six hundred eighty-three million, two hundred ninety-seven thousand, two hundred thirty-eight".