1240073980 has 24 divisors (see below), whose sum is σ = 2717380512. Its totient is φ = 474462912.

The previous prime is 1240073971. The next prime is 1240073983. The reversal of 1240073980 is 893700421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240073983) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1347447 + ... + 1348366.

It is an arithmetic number, because the mean of its divisors is an integer number (113224188).

Almost surely, 2^1240073980 is an apocalyptic number.

1240073980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1240073980 is an abundant number, since it is smaller than the sum of its proper divisors (1477306532).

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

1240073980 is a wasteful number, since it uses less digits than its factorization.

1240073980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2695845 (or 2695843 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 1240073980 is about 35214.6841530632. The cubic root of 1240073980 is about 1074.3584360094.

The spelling of 1240073980 in words is "one billion, two hundred forty million, seventy-three thousand, nine hundred eighty".