376391640 has 32 divisors (see below), whose sum is σ = 1129175280. Its totient is φ = 100371072.

The previous prime is 376391627. The next prime is 376391641. The reversal of 376391640 is 46193673.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (376391641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1568179 + ... + 1568418.

Almost surely, 2^376391640 is an apocalyptic number.

376391640 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

376391640 is an abundant number, since it is smaller than the sum of its proper divisors (752783640).

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

376391640 is a wasteful number, since it uses less digits than its factorization.

376391640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3136611 (or 3136607 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 39.

The square root of 376391640 is about 19400.8154467796. The cubic root of 376391640 is about 722.0157249307.

The spelling of 376391640 in words is "three hundred seventy-six million, three hundred ninety-one thousand, six hundred forty".