381015774 has 12 divisors (see below), whose sum is σ = 825534216. Its totient is φ = 127005252.

The previous prime is 381015737. The next prime is 381015779. The reversal of 381015774 is 477510183.

381015774 is a `hidden beast` number, since 3 + 81 + 0 + 1 + 577 + 4 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381015779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10583754 + ... + 10583789.

It is an arithmetic number, because the mean of its divisors is an integer number (68794518).

Almost surely, 2^381015774 is an apocalyptic number.

381015774 is an abundant number, since it is smaller than the sum of its proper divisors (444518442).

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

381015774 is a wasteful number, since it uses less digits than its factorization.

381015774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21167551 (or 21167548 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 36.

The square root of 381015774 is about 19519.6253550113. The cubic root of 381015774 is about 724.9604569792.

The spelling of 381015774 in words is "three hundred eighty-one million, fifteen thousand, seven hundred seventy-four".