306248678406 has 48 divisors (see below), whose sum is σ = 747210866688. Its totient is φ = 89808994800.

The previous prime is 306248678389. The next prime is 306248678471. The reversal of 306248678406 is 604876842603.

306248678406 is a `hidden beast` number, since 3 + 0 + 624 + 8 + 6 + 7 + 8 + 4 + 0 + 6 = 666.

It is a super-2 number, since 2×306248678406² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

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, 24940806 + ... + 24953081.

It is an arithmetic number, because the mean of its divisors is an integer number (15566893056).

Almost surely, 2^306248678406 is an apocalyptic number.

306248678406 is an abundant number, since it is smaller than the sum of its proper divisors (440962188282).

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

306248678406 is a wasteful number, since it uses less digits than its factorization.

306248678406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49893937 (or 49893934 counting only the distinct ones).

The product of its (nonzero) digits is 9289728, while the sum is 54.

The spelling of 306248678406 in words is "three hundred six billion, two hundred forty-eight million, six hundred seventy-eight thousand, four hundred six".