240557420 has 24 divisors (see below), whose sum is σ = 505646064. Its totient is φ = 96132416.

The previous prime is 240557399. The next prime is 240557453. The reversal of 240557420 is 24755042.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18674 + ... + 28806.

It is an arithmetic number, because the mean of its divisors is an integer number (21068586).

Almost surely, 2^240557420 is an apocalyptic number.

240557420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

240557420 is an abundant number, since it is smaller than the sum of its proper divisors (265088644).

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

240557420 is a wasteful number, since it uses less digits than its factorization.

240557420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11329 (or 11327 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 29.

The square root of 240557420 is about 15509.9136038857. The cubic root of 240557420 is about 621.9272496186.

The spelling of 240557420 in words is "two hundred forty million, five hundred fifty-seven thousand, four hundred twenty".