1980000240 has 160 divisors (see below), whose sum is σ = 6333719616. Its totient is φ = 511303680.

The previous prime is 1980000229. The next prime is 1980000299. The reversal of 1980000240 is 420000891.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 1980000240.

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, 2601460 + ... + 2602220.

Almost surely, 2^1980000240 is an apocalyptic number.

1980000240 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 1980000240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3166859808).

1980000240 is an abundant number, since it is smaller than the sum of its proper divisors (4353719376).

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

1980000240 is a wasteful number, since it uses less digits than its factorization.

1980000240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1107 (or 1101 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 1980000240 is about 44497.1936193733. The cubic root of 1980000240 is about 1255.7072863795.

The spelling of 1980000240 in words is "one billion, nine hundred eighty million, two hundred forty", and thus it is an aban number.