1020423908 has 24 divisors (see below), whose sum is σ = 2090626944. Its totient is φ = 426657600.

The previous prime is 1020423889. The next prime is 1020423913. The reversal of 1020423908 is 8093240201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 443288 + ... + 445583.

It is an arithmetic number, because the mean of its divisors is an integer number (87109456).

Almost surely, 2^1020423908 is an apocalyptic number.

It is an amenable number.

1020423908 is an abundant number, since it is smaller than the sum of its proper divisors (1070203036).

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

1020423908 is a wasteful number, since it uses less digits than its factorization.

1020423908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 888923 (or 888921 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 1020423908 is about 31944.0746931258. The cubic root of 1020423908 is about 1006.7621397299.

The spelling of 1020423908 in words is "one billion, twenty million, four hundred twenty-three thousand, nine hundred eight".