381470 has 16 divisors (see below), whose sum is σ = 705888. Its totient is φ = 148320.

The previous prime is 381467. The next prime is 381481. The reversal of 381470 is 74183.

It is a happy number.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 381470.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146 + ... + 885.

It is an arithmetic number, because the mean of its divisors is an integer number (44118).

2³⁸¹⁴⁷⁰ is an apocalyptic number.

381470 is a deficient number, since it is larger than the sum of its proper divisors (324418).

381470 is a wasteful number, since it uses less digits than its factorization.

381470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1075.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 381470 is about 617.6325768610. The cubic root of 381470 is about 72.5248428538.

The spelling of 381470 in words is "three hundred eighty-one thousand, four hundred seventy".