240492641 has 4 divisors (see below), whose sum is σ = 245030292. Its totient is φ = 235954992.

The previous prime is 240492631. The next prime is 240492643. The reversal of 240492641 is 146294042.

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 177449041 + 63043600 = 13321^2 + 7940^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-240492641 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 240492598 and 240492607.

It is not an unprimeable number, because it can be changed into a prime (240492643) 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, 2268746 + ... + 2268851.

It is an arithmetic number, because the mean of its divisors is an integer number (61257573).

Almost surely, 2^240492641 is an apocalyptic number.

It is an amenable number.

240492641 is a deficient number, since it is larger than the sum of its proper divisors (4537651).

240492641 is an equidigital number, since it uses as much as digits as its factorization.

240492641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4537650.

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 240492641 is about 15507.8251537732. The cubic root of 240492641 is about 621.8714189536.

The spelling of 240492641 in words is "two hundred forty million, four hundred ninety-two thousand, six hundred forty-one".