308347494 has 48 divisors (see below), whose sum is σ = 772572528. Its totient is φ = 81321408.

The previous prime is 308347489. The next prime is 308347519. The reversal of 308347494 is 494743803.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36517 + ... + 44160.

It is an arithmetic number, because the mean of its divisors is an integer number (16095261).

Almost surely, 2^308347494 is an apocalyptic number.

308347494 is an abundant number, since it is smaller than the sum of its proper divisors (464225034).

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

308347494 is a wasteful number, since it uses less digits than its factorization.

308347494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80709 (or 80702 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 42.

The square root of 308347494 is about 17559.8261380915. The cubic root of 308347494 is about 675.5852219610.

The spelling of 308347494 in words is "three hundred eight million, three hundred forty-seven thousand, four hundred ninety-four".