1004383980 has 72 divisors (see below), whose sum is σ = 3057551952. Its totient is φ = 266875776.

The previous prime is 1004383967. The next prime is 1004384027. The reversal of 1004383980 is 893834001.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41082 + ... + 60798.

Almost surely, 2^1004383980 is an apocalyptic number.

1004383980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1004383980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1528775976).

1004383980 is an abundant number, since it is smaller than the sum of its proper divisors (2053167972).

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

1004383980 is a wasteful number, since it uses less digits than its factorization.

1004383980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20015 (or 20010 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 1004383980 is about 31692.0176069622. The cubic root of 1004383980 is about 1001.4591963769.

The spelling of 1004383980 in words is "one billion, four million, three hundred eighty-three thousand, nine hundred eighty".