381874782 has 32 divisors (see below), whose sum is σ = 778752000. Its totient is φ = 124813728.

The previous prime is 381874777. The next prime is 381874793. The reversal of 381874782 is 287478183.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67923 + ... + 73329.

It is an arithmetic number, because the mean of its divisors is an integer number (24336000).

Almost surely, 2^381874782 is an apocalyptic number.

381874782 is an abundant number, since it is smaller than the sum of its proper divisors (396877218).

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

381874782 is a wasteful number, since it uses less digits than its factorization.

381874782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5640.

The product of its digits is 602112, while the sum is 48.

The square root of 381874782 is about 19541.6166680242. The cubic root of 381874782 is about 725.5048608783.

The spelling of 381874782 in words is "three hundred eighty-one million, eight hundred seventy-four thousand, seven hundred eighty-two".