240265493 has 8 divisors (see below), whose sum is σ = 267670200. Its totient is φ = 214135488.

The previous prime is 240265477. The next prime is 240265499. The reversal of 240265493 is 394562042.

It can be written as a sum of positive squares in 4 ways, for example, as 3659569 + 236605924 = 1913^2 + 15382^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 240265493 - 2⁴ = 240265477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240265499) 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, 318278 + ... + 319031.

It is an arithmetic number, because the mean of its divisors is an integer number (33458775).

Almost surely, 2^240265493 is an apocalyptic number.

It is an amenable number.

240265493 is a deficient number, since it is larger than the sum of its proper divisors (27404707).

240265493 is a wasteful number, since it uses less digits than its factorization.

240265493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 637351.

The product of its (nonzero) digits is 51840, while the sum is 35.

The square root of 240265493 is about 15500.4997661366. The cubic root of 240265493 is about 621.6755691004.

The spelling of 240265493 in words is "two hundred forty million, two hundred sixty-five thousand, four hundred ninety-three".