1980481536 has 360 divisors, whose sum is σ = 6624176720. Its totient is φ = 583925760.

The previous prime is 1980481501. The next prime is 1980481553. The reversal of 1980481536 is 6351840891.

It is a super-2 number, since 2×1980481536² = 7844614228873838592, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1980481491 and 1980481500.

It is a congruent number.

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, 53526510 + ... + 53526546.

Almost surely, 2^1980481536 is an apocalyptic number.

1980481536 is a gapful number since it is divisible by the number (16) 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 1980481536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3312088360).

1980481536 is an abundant number, since it is smaller than the sum of its proper divisors (4643695184).

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

1980481536 is an equidigital number, since it uses as much as digits as its factorization.

1980481536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96 (or 53 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 45.

The square root of 1980481536 is about 44502.6014520500. The cubic root of 1980481536 is about 1255.8090233926.

The spelling of 1980481536 in words is "one billion, nine hundred eighty million, four hundred eighty-one thousand, five hundred thirty-six".