308306406 has 32 divisors (see below), whose sum is σ = 631162368. Its totient is φ = 100362080.

The previous prime is 308306399. The next prime is 308306423. The reversal of 308306406 is 604603803.

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, 70051 + ... + 74321.

It is an arithmetic number, because the mean of its divisors is an integer number (19723824).

Almost surely, 2^308306406 is an apocalyptic number.

308306406 is an abundant number, since it is smaller than the sum of its proper divisors (322855962).

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

308306406 is a wasteful number, since it uses less digits than its factorization.

308306406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4556.

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 308306406 is about 17558.6561558680. The cubic root of 308306406 is about 675.5552128758. Note that the first 3 decimals are identical.

The spelling of 308306406 in words is "three hundred eight million, three hundred six thousand, four hundred six".