240357691420 has 48 divisors (see below), whose sum is σ = 629300141568. Its totient is φ = 74916682560.

The previous prime is 240357691381. The next prime is 240357691439. The reversal of 240357691420 is 24196753042.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78036672 + ... + 78039751.

It is an arithmetic number, because the mean of its divisors is an integer number (13110419616).

Almost surely, 2^240357691420 is an apocalyptic number.

240357691420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

240357691420 is an abundant number, since it is smaller than the sum of its proper divisors (388942450148).

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

240357691420 is a wasteful number, since it uses less digits than its factorization.

240357691420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156076450 (or 156076448 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 43.

The spelling of 240357691420 in words is "two hundred forty billion, three hundred fifty-seven million, six hundred ninety-one thousand, four hundred twenty".