381740877 has 64 divisors (see below), whose sum is σ = 673177600. Its totient is φ = 209252160.

The previous prime is 381740857. The next prime is 381740893. The reversal of 381740877 is 778047183.

It is a happy number.

It is not a de Polignac number, because 381740877 - 2¹² = 381736781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381740857) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 552102 + ... + 552792.

It is an arithmetic number, because the mean of its divisors is an integer number (10518400).

Almost surely, 2^381740877 is an apocalyptic number.

381740877 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

It is an amenable number.

381740877 is a deficient number, since it is larger than the sum of its proper divisors (291436723).

381740877 is a wasteful number, since it uses less digits than its factorization.

381740877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 823 (or 817 counting only the distinct ones).

The product of its (nonzero) digits is 263424, while the sum is 45.

The square root of 381740877 is about 19538.1902181343. The cubic root of 381740877 is about 725.4200511533.

The spelling of 381740877 in words is "three hundred eighty-one million, seven hundred forty thousand, eight hundred seventy-seven".