240866413 has 4 divisors (see below), whose sum is σ = 242624700. Its totient is φ = 239108128.

The previous prime is 240866389. The next prime is 240866429. The reversal of 240866413 is 314668042.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 193710724 + 47155689 = 13918^2 + 6867^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-240866413 is a prime.

It is a super-2 number, since 2×240866413² = 116033257822973138, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240866473) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 878938 + ... + 879211.

It is an arithmetic number, because the mean of its divisors is an integer number (60656175).

Almost surely, 2^240866413 is an apocalyptic number.

It is an amenable number.

240866413 is a deficient number, since it is larger than the sum of its proper divisors (1758287).

240866413 is a wasteful number, since it uses less digits than its factorization.

240866413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1758286.

The product of its (nonzero) digits is 27648, while the sum is 34.

The square root of 240866413 is about 15519.8715523035. The cubic root of 240866413 is about 622.1934216131.

The spelling of 240866413 in words is "two hundred forty million, eight hundred sixty-six thousand, four hundred thirteen".