308380090 has 32 divisors (see below), whose sum is σ = 592707456. Its totient is φ = 115241280.

The previous prime is 308380081. The next prime is 308380097. The reversal of 308380090 is 90083803.

It is not an unprimeable number, because it can be changed into a prime (308380097) 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, 5701 + ... + 25480.

It is an arithmetic number, because the mean of its divisors is an integer number (18522108).

Almost surely, 2^308380090 is an apocalyptic number.

308380090 is a deficient number, since it is larger than the sum of its proper divisors (284327366).

308380090 is a wasteful number, since it uses less digits than its factorization.

308380090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31254.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 308380090 is about 17560.7542548719. The cubic root of 308380090 is about 675.6090269218.

The spelling of 308380090 in words is "three hundred eight million, three hundred eighty thousand, ninety".