240680780 has 24 divisors (see below), whose sum is σ = 506852640. Its totient is φ = 96001280.

The previous prime is 240680779. The next prime is 240680789. The reversal of 240680780 is 87086042.

It is a super-2 number, since 2×240680780² = 115854475722816800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 240680780.

It is not an unprimeable number, because it can be changed into a prime (240680789) 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, 9581 + ... + 23940.

It is an arithmetic number, because the mean of its divisors is an integer number (21118860).

Almost surely, 2^240680780 is an apocalyptic number.

240680780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

240680780 is an abundant number, since it is smaller than the sum of its proper divisors (266171860).

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

240680780 is a wasteful number, since it uses less digits than its factorization.

240680780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33889 (or 33887 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 240680780 is about 15513.8899055008. The cubic root of 240680780 is about 622.0335414066.

The spelling of 240680780 in words is "two hundred forty million, six hundred eighty thousand, seven hundred eighty".