240664047 has 16 divisors (see below), whose sum is σ = 346764768. Its totient is φ = 147588480.

The previous prime is 240664037. The next prime is 240664063. The reversal of 240664047 is 740466042.

It is not a de Polignac number, because 240664047 - 2⁷ = 240663919 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 240663999 and 240664017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240664037) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 897 + ... + 21957.

It is an arithmetic number, because the mean of its divisors is an integer number (21672798).

Almost surely, 2^240664047 is an apocalyptic number.

240664047 is a deficient number, since it is larger than the sum of its proper divisors (106100721).

240664047 is a wasteful number, since it uses less digits than its factorization.

240664047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21370.

The product of its (nonzero) digits is 32256, while the sum is 33.

The square root of 240664047 is about 15513.3506052045. The cubic root of 240664047 is about 622.0191257306.

The spelling of 240664047 in words is "two hundred forty million, six hundred sixty-four thousand, forty-seven".