381498670 has 32 divisors (see below), whose sum is σ = 796520448. Its totient is φ = 128845728.

The previous prime is 381498659. The next prime is 381498703. The reversal of 381498670 is 76894183.

It is a happy number.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 381498670.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35982 + ... + 45361.

It is an arithmetic number, because the mean of its divisors is an integer number (24891264).

Almost surely, 2^381498670 is an apocalyptic number.

381498670 is an abundant number, since it is smaller than the sum of its proper divisors (415021778).

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

381498670 is a wasteful number, since it uses less digits than its factorization.

381498670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81424.

The product of its (nonzero) digits is 290304, while the sum is 46.

The square root of 381498670 is about 19531.9909379459. The cubic root of 381498670 is about 725.2665971589.

The spelling of 381498670 in words is "three hundred eighty-one million, four hundred ninety-eight thousand, six hundred seventy".