375666 has 32 divisors (see below), whose sum is σ = 829440. Its totient is φ = 112896.

The previous prime is 375647. The next prime is 375667. The reversal of 375666 is 666573.

It is a super-2 number, since 2×375666² = 282249887112, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (375667) by changing a digit.

375666 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2895 + ... + 3021.

It is an arithmetic number, because the mean of its divisors is an integer number (25920).

2³⁷⁵⁶⁶⁶ is an apocalyptic number.

375666 is an abundant number, since it is smaller than the sum of its proper divisors (453774).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

375666 is a wasteful number, since it uses less digits than its factorization.

375666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178.

The product of its digits is 22680, while the sum is 33.

The square root of 375666 is about 612.9159811915. The cubic root of 375666 is about 72.1551438547.

The spelling of 375666 in words is "three hundred seventy-five thousand, six hundred sixty-six".