381807458 has 16 divisors (see below), whose sum is σ = 579273120. Its totient is φ = 188724096.

The previous prime is 381807431. The next prime is 381807463. The reversal of 381807458 is 854708183.

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, 118898 + ... + 122066.

It is an arithmetic number, because the mean of its divisors is an integer number (36204570).

Almost surely, 2^381807458 is an apocalyptic number.

381807458 is a deficient number, since it is larger than the sum of its proper divisors (197465662).

381807458 is a wasteful number, since it uses less digits than its factorization.

381807458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3841.

The product of its (nonzero) digits is 215040, while the sum is 44.

The square root of 381807458 is about 19539.8940119950. The cubic root of 381807458 is about 725.4622232021.

The spelling of 381807458 in words is "three hundred eighty-one million, eight hundred seven thousand, four hundred fifty-eight".