1004851980 has 480 divisors, whose sum is σ = 3793692672. Its totient is φ = 219801600.

The previous prime is 1004851979. The next prime is 1004851987. The reversal of 1004851980 is 891584001.

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

It is not an unprimeable number, because it can be changed into a prime (1004851987) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 9391087 + ... + 9391193.

Almost surely, 2^1004851980 is an apocalyptic number.

1004851980 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 1004851980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1896846336).

1004851980 is an abundant number, since it is smaller than the sum of its proper divisors (2788840692).

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

1004851980 is a wasteful number, since it uses less digits than its factorization.

1004851980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187 (or 176 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 36.

The square root of 1004851980 is about 31699.4003097850. The cubic root of 1004851980 is about 1001.6147179493.

The spelling of 1004851980 in words is "one billion, four million, eight hundred fifty-one thousand, nine hundred eighty".