240690479 has 8 divisors (see below), whose sum is σ = 254234112. Its totient is φ = 227508120.

The previous prime is 240690451. The next prime is 240690481. The reversal of 240690479 is 974096042.

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

It is a cyclic number.

It is not a de Polignac number, because 240690479 - 2⁸ = 240690223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240690409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88949 + ... + 91614.

It is an arithmetic number, because the mean of its divisors is an integer number (31779264).

Almost surely, 2^240690479 is an apocalyptic number.

240690479 is a deficient number, since it is larger than the sum of its proper divisors (13543633).

240690479 is a wasteful number, since it uses less digits than its factorization.

240690479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180637.

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 240690479 is about 15514.2024931996. The cubic root of 240690479 is about 622.0418969032.

The spelling of 240690479 in words is "two hundred forty million, six hundred ninety thousand, four hundred seventy-nine".