1042920856 has 32 divisors (see below), whose sum is σ = 2005190640. Its totient is φ = 508330368.

The previous prime is 1042920841. The next prime is 1042920869. The reversal of 1042920856 is 6580292401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58735 + ... + 74401.

Almost surely, 2^1042920856 is an apocalyptic number.

It is an amenable number.

1042920856 is a deficient number, since it is larger than the sum of its proper divisors (962269784).

1042920856 is a wasteful number, since it uses less digits than its factorization.

1042920856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15883 (or 15879 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 1042920856 is about 32294.2851910365. The cubic root of 1042920856 is about 1014.1070085098.

The spelling of 1042920856 in words is "one billion, forty-two million, nine hundred twenty thousand, eight hundred fifty-six".