457582666 has 8 divisors (see below), whose sum is σ = 687115620. Its totient is φ = 228544128.

The previous prime is 457582639. The next prime is 457582667. The reversal of 457582666 is 666285754.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 371371441 + 86211225 = 19271^2 + 9285^2 .

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

It is not an unprimeable number, because it can be changed into a prime (457582667) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121281 + ... + 124996.

Almost surely, 2^457582666 is an apocalyptic number.

457582666 is a deficient number, since it is larger than the sum of its proper divisors (229532954).

457582666 is a wasteful number, since it uses less digits than its factorization.

457582666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247208.

The product of its digits is 2419200, while the sum is 49.

The square root of 457582666 is about 21391.1819682784. The cubic root of 457582666 is about 770.5896792927.

The spelling of 457582666 in words is "four hundred fifty-seven million, five hundred eighty-two thousand, six hundred sixty-six".