240997660 has 24 divisors (see below), whose sum is σ = 513651600. Its totient is φ = 94959744.

The previous prime is 240997651. The next prime is 240997663. The reversal of 240997660 is 66799042.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240997663) 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, 88585 + ... + 91264.

It is an arithmetic number, because the mean of its divisors is an integer number (21402150).

Almost surely, 2^240997660 is an apocalyptic number.

240997660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

240997660 is an abundant number, since it is smaller than the sum of its proper divisors (272653940).

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

240997660 is a wasteful number, since it uses less digits than its factorization.

240997660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179925 (or 179923 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 43.

The square root of 240997660 is about 15524.0993297518. The cubic root of 240997660 is about 622.3064112038.

The spelling of 240997660 in words is "two hundred forty million, nine hundred ninety-seven thousand, six hundred sixty".