381807632 has 40 divisors (see below), whose sum is σ = 752035200. Its totient is φ = 187754112.

The previous prime is 381807623. The next prime is 381807637. The reversal of 381807632 is 236708183.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (381807637) 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, 478658 + ... + 479454.

It is an arithmetic number, because the mean of its divisors is an integer number (18800880).

Almost surely, 2^381807632 is an apocalyptic number.

It is an amenable number.

381807632 is a deficient number, since it is larger than the sum of its proper divisors (370227568).

381807632 is a wasteful number, since it uses less digits than its factorization.

381807632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1263 (or 1257 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 381807632 is about 19539.8984644240. The cubic root of 381807632 is about 725.4623334064.

The spelling of 381807632 in words is "three hundred eighty-one million, eight hundred seven thousand, six hundred thirty-two".