381873144 has 16 divisors (see below), whose sum is σ = 954682920. Its totient is φ = 127291040.

The previous prime is 381873127. The next prime is 381873161. The reversal of 381873144 is 441378183.

It is an interprime number because it is at equal distance from previous prime (381873127) and next prime (381873161).

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 7955667 + ... + 7955714.

Almost surely, 2^381873144 is an apocalyptic number.

It is an amenable number.

381873144 is an abundant number, since it is smaller than the sum of its proper divisors (572809776).

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

381873144 is a wasteful number, since it uses less digits than its factorization.

381873144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15911390 (or 15911386 counting only the distinct ones).

The product of its digits is 64512, while the sum is 39.

The square root of 381873144 is about 19541.5747574242. The cubic root of 381873144 is about 725.5038235587.

The spelling of 381873144 in words is "three hundred eighty-one million, eight hundred seventy-three thousand, one hundred forty-four".