240642466 has 8 divisors (see below), whose sum is σ = 361591020. Its totient is φ = 120112128.

The previous prime is 240642449. The next prime is 240642503. The reversal of 240642466 is 664246042.

It can be written as a sum of positive squares in 2 ways, for example, as 163712025 + 76930441 = 12795^2 + 8771^2 .

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

It is a super-2 number, since 2×240642466² = 115817592885122312, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103111 + ... + 105418.

Almost surely, 2^240642466 is an apocalyptic number.

240642466 is a deficient number, since it is larger than the sum of its proper divisors (120948554).

240642466 is a wasteful number, since it uses less digits than its factorization.

240642466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209108.

The product of its (nonzero) digits is 55296, while the sum is 34.

The square root of 240642466 is about 15512.6550274284. The cubic root of 240642466 is about 622.0005324589. Note that the first 3 decimals are identical.

The spelling of 240642466 in words is "two hundred forty million, six hundred forty-two thousand, four hundred sixty-six".