381707404 has 12 divisors (see below), whose sum is σ = 719371744. Its totient is φ = 176172624.

The previous prime is 381707401. The next prime is 381707411. The reversal of 381707404 is 404707183.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 381707404.

It is not an unprimeable number, because it can be changed into a prime (381707401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3670212 + ... + 3670315.

Almost surely, 2^381707404 is an apocalyptic number.

It is an amenable number.

381707404 is a deficient number, since it is larger than the sum of its proper divisors (337664340).

381707404 is a wasteful number, since it uses less digits than its factorization.

381707404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7340544 (or 7340542 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 34.

The square root of 381707404 is about 19537.3335949407. Note that the first 3 decimals coincide. The cubic root of 381707404 is about 725.3988476821.

The spelling of 381707404 in words is "three hundred eighty-one million, seven hundred seven thousand, four hundred four".