1042922820 has 24 divisors (see below), whose sum is σ = 2920184064. Its totient is φ = 278112736.

The previous prime is 1042922813. The next prime is 1042922887. The reversal of 1042922820 is 282292401.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 8690964 + ... + 8691083.

It is an arithmetic number, because the mean of its divisors is an integer number (121674336).

Almost surely, 2^1042922820 is an apocalyptic number.

1042922820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1042922820 is an abundant number, since it is smaller than the sum of its proper divisors (1877261244).

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

1042922820 is a wasteful number, since it uses less digits than its factorization.

1042922820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17382059 (or 17382057 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 1042922820 is about 32294.3155988790. The cubic root of 1042922820 is about 1014.1076450890.

The spelling of 1042922820 in words is "one billion, forty-two million, nine hundred twenty-two thousand, eight hundred twenty".