308137247340 has 96 divisors (see below), whose sum is σ = 978055115520. Its totient is φ = 71857103616.

The previous prime is 308137247303. The next prime is 308137247351. The reversal of 308137247340 is 43742731803.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 308137247292 and 308137247301.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10381174 + ... + 10410813.

It is an arithmetic number, because the mean of its divisors is an integer number (10188074120).

Almost surely, 2^308137247340 is an apocalyptic number.

308137247340 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

308137247340 is an abundant number, since it is smaller than the sum of its proper divisors (669917868180).

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

308137247340 is a wasteful number, since it uses less digits than its factorization.

308137247340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20792031 (or 20792029 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 42.

The spelling of 308137247340 in words is "three hundred eight billion, one hundred thirty-seven million, two hundred forty-seven thousand, three hundred forty".