381497910 has 32 divisors (see below), whose sum is σ = 928495872. Its totient is φ = 100299360.

The previous prime is 381497899. The next prime is 381497947. The reversal of 381497910 is 19794183.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87424 + ... + 91683.

It is an arithmetic number, because the mean of its divisors is an integer number (29015496).

Almost surely, 2^381497910 is an apocalyptic number.

381497910 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

381497910 is an abundant number, since it is smaller than the sum of its proper divisors (546997962).

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

381497910 is a wasteful number, since it uses less digits than its factorization.

381497910 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179188.

The product of its (nonzero) digits is 54432, while the sum is 42.

The square root of 381497910 is about 19531.9714826742. The cubic root of 381497910 is about 725.2661155470.

The spelling of 381497910 in words is "three hundred eighty-one million, four hundred ninety-seven thousand, nine hundred ten".