381323672 has 8 divisors (see below), whose sum is σ = 714981900. Its totient is φ = 190661832.

The previous prime is 381323573. The next prime is 381323687. The reversal of 381323672 is 276323183.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23832722 + ... + 23832737.

Almost surely, 2^381323672 is an apocalyptic number.

It is an amenable number.

381323672 is a deficient number, since it is larger than the sum of its proper divisors (333658228).

381323672 is a wasteful number, since it uses less digits than its factorization.

381323672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47665465 (or 47665461 counting only the distinct ones).

The product of its digits is 36288, while the sum is 35.

The square root of 381323672 is about 19527.5106452410. The cubic root of 381323672 is about 725.1556840457.

The spelling of 381323672 in words is "three hundred eighty-one million, three hundred twenty-three thousand, six hundred seventy-two".