381146072 has 32 divisors (see below), whose sum is σ = 744994800. Its totient is φ = 182582400.

The previous prime is 381146071. The next prime is 381146081. The reversal of 381146072 is 270641183.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381146071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24122 + ... + 36662.

Almost surely, 2^381146072 is an apocalyptic number.

It is an amenable number.

381146072 is a deficient number, since it is larger than the sum of its proper divisors (363848728).

381146072 is a wasteful number, since it uses less digits than its factorization.

381146072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12707 (or 12703 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 381146072 is about 19522.9626850025. The cubic root of 381146072 is about 725.0430870944.

The spelling of 381146072 in words is "three hundred eighty-one million, one hundred forty-six thousand, seventy-two".