668372376 has 64 divisors (see below), whose sum is σ = 1911571200. Its totient is φ = 190770048.

The previous prime is 668372371. The next prime is 668372377. The reversal of 668372376 is 673273866.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (668372371) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 288310 + ... + 290618.

It is an arithmetic number, because the mean of its divisors is an integer number (29868300).

Almost surely, 2^668372376 is an apocalyptic number.

It is an amenable number.

668372376 is an abundant number, since it is smaller than the sum of its proper divisors (1243198824).

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

668372376 is a wasteful number, since it uses less digits than its factorization.

668372376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4048 (or 4044 counting only the distinct ones).

The product of its digits is 1524096, while the sum is 48.

The square root of 668372376 is about 25852.8987929787. The cubic root of 668372376 is about 874.3248674056.

The spelling of 668372376 in words is "six hundred sixty-eight million, three hundred seventy-two thousand, three hundred seventy-six".