240634645 has 16 divisors (see below), whose sum is σ = 293487552. Its totient is φ = 189371520.

The previous prime is 240634637. The next prime is 240634661. The reversal of 240634645 is 546436042.

It is not a de Polignac number, because 240634645 - 2³ = 240634637 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 240634645.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 204910 + ... + 206080.

It is an arithmetic number, because the mean of its divisors is an integer number (18342972).

Almost surely, 2^240634645 is an apocalyptic number.

It is an amenable number.

240634645 is a deficient number, since it is larger than the sum of its proper divisors (52852907).

240634645 is a wasteful number, since it uses less digits than its factorization.

240634645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1812.

The product of its (nonzero) digits is 69120, while the sum is 34.

The square root of 240634645 is about 15512.4029408728. The cubic root of 240634645 is about 621.9937939435.

The spelling of 240634645 in words is "two hundred forty million, six hundred thirty-four thousand, six hundred forty-five".