240742990 has 16 divisors (see below), whose sum is σ = 433534752. Its totient is φ = 96253344.

The previous prime is 240742987. The next prime is 240742991. The reversal of 240742990 is 99247042.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240742991) 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, 26407 + ... + 34333.

It is an arithmetic number, because the mean of its divisors is an integer number (27095922).

Almost surely, 2^240742990 is an apocalyptic number.

240742990 is a deficient number, since it is larger than the sum of its proper divisors (192791762).

240742990 is a wasteful number, since it uses less digits than its factorization.

240742990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10971.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 240742990 is about 15515.8947534456. The cubic root of 240742990 is about 622.0871301934.

The spelling of 240742990 in words is "two hundred forty million, seven hundred forty-two thousand, nine hundred ninety".