308422642 has 16 divisors (see below), whose sum is σ = 506794464. Its totient is φ = 139608000.

The previous prime is 308422633. The next prime is 308422643. The reversal of 308422642 is 246224803.

It is not an unprimeable number, because it can be changed into a prime (308422643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23784 + ... + 34387.

It is an arithmetic number, because the mean of its divisors is an integer number (31674654).

Almost surely, 2^308422642 is an apocalyptic number.

308422642 is a deficient number, since it is larger than the sum of its proper divisors (198371822).

308422642 is a wasteful number, since it uses less digits than its factorization.

308422642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58425.

The product of its (nonzero) digits is 18432, while the sum is 31.

The square root of 308422642 is about 17561.9657783518. The cubic root of 308422642 is about 675.6401002563.

The spelling of 308422642 in words is "three hundred eight million, four hundred twenty-two thousand, six hundred forty-two".