381407814 has 12 divisors (see below), whose sum is σ = 826383636. Its totient is φ = 127135932.

The previous prime is 381407779. The next prime is 381407821. The reversal of 381407814 is 418704183.

381407814 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10594644 + ... + 10594679.

It is an arithmetic number, because the mean of its divisors is an integer number (68865303).

Almost surely, 2^381407814 is an apocalyptic number.

381407814 is an abundant number, since it is smaller than the sum of its proper divisors (444975822).

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

381407814 is a wasteful number, since it uses less digits than its factorization.

381407814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21189331 (or 21189328 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 381407814 is about 19529.6649740849. The cubic root of 381407814 is about 725.2090171821.

It can be divided in two parts, 38140 and 7814, that added together give a palindrome (45954).

The spelling of 381407814 in words is "three hundred eighty-one million, four hundred seven thousand, eight hundred fourteen".