240400156620 has 48 divisors (see below), whose sum is σ = 724898936160. Its totient is φ = 59175422976.

The previous prime is 240400156589. The next prime is 240400156627. The reversal of 240400156620 is 26651004042.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (240400156627) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 154101885 + ... + 154103444.

It is an arithmetic number, because the mean of its divisors is an integer number (15102061170).

Almost surely, 2^240400156620 is an apocalyptic number.

240400156620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

240400156620 is an abundant number, since it is smaller than the sum of its proper divisors (484498779540).

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

240400156620 is a wasteful number, since it uses less digits than its factorization.

240400156620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308205354 (or 308205352 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The spelling of 240400156620 in words is "two hundred forty billion, four hundred million, one hundred fifty-six thousand, six hundred twenty".