240394664 has 8 divisors (see below), whose sum is σ = 450740010. Its totient is φ = 120197328.

The previous prime is 240394579. The next prime is 240394667. The reversal of 240394664 is 466493042.

240394664 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 155201764 + 85192900 = 12458^2 + 9230^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (240394667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15024659 + ... + 15024674.

Almost surely, 2^240394664 is an apocalyptic number.

It is an amenable number.

240394664 is a deficient number, since it is larger than the sum of its proper divisors (210345346).

240394664 is a wasteful number, since it uses less digits than its factorization.

240394664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30049339 (or 30049335 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 38.

The square root of 240394664 is about 15504.6658783735. The cubic root of 240394664 is about 621.7869570871.

The spelling of 240394664 in words is "two hundred forty million, three hundred ninety-four thousand, six hundred sixty-four".