1004665980 has 96 divisors (see below), whose sum is σ = 2912974848. Its totient is φ = 258451200.

The previous prime is 1004665979. The next prime is 1004666029. The reversal of 1004665980 is 895664001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 782419 + ... + 783701.

It is an arithmetic number, because the mean of its divisors is an integer number (30343488).

Almost surely, 2^1004665980 is an apocalyptic number.

1004665980 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 1004665980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1456487424).

1004665980 is an abundant number, since it is smaller than the sum of its proper divisors (1908308868).

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

1004665980 is a wasteful number, since it uses less digits than its factorization.

1004665980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1747 (or 1745 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 1004665980 is about 31696.4663645650. The cubic root of 1004665980 is about 1001.5529138769.

The spelling of 1004665980 in words is "one billion, four million, six hundred sixty-five thousand, nine hundred eighty".