381361478 has 16 divisors (see below), whose sum is σ = 587957184. Its totient is φ = 185427840.

The previous prime is 381361471. The next prime is 381361481. The reversal of 381361478 is 874163183.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381361471) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1838 + ... + 27678.

It is an arithmetic number, because the mean of its divisors is an integer number (36747324).

Almost surely, 2^381361478 is an apocalyptic number.

381361478 is a deficient number, since it is larger than the sum of its proper divisors (206595706).

381361478 is a wasteful number, since it uses less digits than its factorization.

381361478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26047.

The product of its digits is 96768, while the sum is 41.

The square root of 381361478 is about 19528.4786401809. The cubic root of 381361478 is about 725.1796482279.

The spelling of 381361478 in words is "three hundred eighty-one million, three hundred sixty-one thousand, four hundred seventy-eight".