240862681 has 4 divisors (see below), whose sum is σ = 255031092. Its totient is φ = 226694272.

The previous prime is 240862669. The next prime is 240862691. The reversal of 240862681 is 186268042.

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 182493081 + 58369600 = 13509^2 + 7640^2 .

It is a cyclic number.

It is not a de Polignac number, because 240862681 - 2⁷ = 240862553 is a prime.

It is a super-2 number, since 2×240862681² = 116029662197015522, which contains 22 as substring.

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 240862681.

It is not an unprimeable number, because it can be changed into a prime (240862621) 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, 7084180 + ... + 7084213.

It is an arithmetic number, because the mean of its divisors is an integer number (63757773).

Almost surely, 2^240862681 is an apocalyptic number.

It is an amenable number.

240862681 is a deficient number, since it is larger than the sum of its proper divisors (14168411).

240862681 is a wasteful number, since it uses less digits than its factorization.

240862681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14168410.

The product of its (nonzero) digits is 36864, while the sum is 37.

The square root of 240862681 is about 15519.7513188839. The cubic root of 240862681 is about 622.1902081613.

The spelling of 240862681 in words is "two hundred forty million, eight hundred sixty-two thousand, six hundred eighty-one".