240990685 has 32 divisors (see below), whose sum is σ = 320302080. Its totient is φ = 172972800.

The previous prime is 240990679. The next prime is 240990689. The reversal of 240990685 is 586099042.

It is not a de Polignac number, because 240990685 - 2³ = 240990677 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240990689) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 364255 + ... + 364915.

It is an arithmetic number, because the mean of its divisors is an integer number (10009440).

Almost surely, 2^240990685 is an apocalyptic number.

It is an amenable number.

240990685 is a deficient number, since it is larger than the sum of its proper divisors (79311395).

240990685 is a wasteful number, since it uses less digits than its factorization.

240990685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 829.

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 240990685 is about 15523.8746774122. The cubic root of 240990685 is about 622.3004075092.

The spelling of 240990685 in words is "two hundred forty million, nine hundred ninety thousand, six hundred eighty-five".