240736641 has 8 divisors (see below), whose sum is σ = 321746304. Its totient is φ = 160109040.

The previous prime is 240736619. The next prime is 240736649. The reversal of 240736641 is 146637042.

It is a happy number.

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

It is not a de Polignac number, because 240736641 - 2⁶ = 240736577 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (240736649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94041 + ... + 96566.

It is an arithmetic number, because the mean of its divisors is an integer number (40218288).

Almost surely, 2^240736641 is an apocalyptic number.

It is an amenable number.

240736641 is a deficient number, since it is larger than the sum of its proper divisors (81009663).

240736641 is a wasteful number, since it uses less digits than its factorization.

240736641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191031.

The product of its (nonzero) digits is 24192, while the sum is 33.

The square root of 240736641 is about 15515.6901554523. The cubic root of 240736641 is about 622.0816614764.

The spelling of 240736641 in words is "two hundred forty million, seven hundred thirty-six thousand, six hundred forty-one".