1980047480 has 16 divisors (see below), whose sum is σ = 4455106920. Its totient is φ = 792018976.

The previous prime is 1980047479. The next prime is 1980047491. The reversal of 1980047480 is 847400891.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24750554 + ... + 24750633.

Almost surely, 2^1980047480 is an apocalyptic number.

1980047480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1980047480 is an abundant number, since it is smaller than the sum of its proper divisors (2475059440).

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

1980047480 is a wasteful number, since it uses less digits than its factorization.

1980047480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49501198 (or 49501194 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 41.

The square root of 1980047480 is about 44497.7244362001. The cubic root of 1980047480 is about 1255.7172727656.

The spelling of 1980047480 in words is "one billion, nine hundred eighty million, forty-seven thousand, four hundred eighty".