381398710 has 32 divisors (see below), whose sum is σ = 855919872. Its totient is φ = 118877280.

The previous prime is 381398681. The next prime is 381398729. The reversal of 381398710 is 17893183.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 246892 + ... + 248431.

It is an arithmetic number, because the mean of its divisors is an integer number (26747496).

Almost surely, 2^381398710 is an apocalyptic number.

381398710 is an abundant number, since it is smaller than the sum of its proper divisors (474521162).

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

381398710 is a wasteful number, since it uses less digits than its factorization.

381398710 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495348.

The product of its (nonzero) digits is 36288, while the sum is 40.

The square root of 381398710 is about 19529.4318913787. The cubic root of 381398710 is about 725.2032470194.

The spelling of 381398710 in words is "three hundred eighty-one million, three hundred ninety-eight thousand, seven hundred ten".