308920942 has 32 divisors (see below), whose sum is σ = 519644160. Its totient is φ = 136531680.

The previous prime is 308920919. The next prime is 308920949. The reversal of 308920942 is 249029803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (308920949) 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, 171784 + ... + 173572.

It is an arithmetic number, because the mean of its divisors is an integer number (16238880).

Almost surely, 2^308920942 is an apocalyptic number.

308920942 is a deficient number, since it is larger than the sum of its proper divisors (210723218).

308920942 is a wasteful number, since it uses less digits than its factorization.

308920942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2016.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 308920942 is about 17576.1469611516. The cubic root of 308920942 is about 676.0037682294.

The spelling of 308920942 in words is "three hundred eight million, nine hundred twenty thousand, nine hundred forty-two".