240490636 has 12 divisors (see below), whose sum is σ = 445615128. Its totient is φ = 113172032.

The previous prime is 240490597. The next prime is 240490637. The reversal of 240490636 is 636094042.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (240490637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1768246 + ... + 1768381.

It is an arithmetic number, because the mean of its divisors is an integer number (37134594).

Almost surely, 2^240490636 is an apocalyptic number.

It is an amenable number.

240490636 is a deficient number, since it is larger than the sum of its proper divisors (205124492).

240490636 is a wasteful number, since it uses less digits than its factorization.

240490636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3536648 (or 3536646 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 34.

The square root of 240490636 is about 15507.7605088549. The cubic root of 240490636 is about 621.8696907571.

The spelling of 240490636 in words is "two hundred forty million, four hundred ninety thousand, six hundred thirty-six".