381066478 has 16 divisors (see below), whose sum is σ = 632207520. Its totient is φ = 171122976.

The previous prime is 381066463. The next prime is 381066523. The reversal of 381066478 is 874660183.

It is a congruent number.

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, 197098 + ... + 199021.

It is an arithmetic number, because the mean of its divisors is an integer number (39512970).

Almost surely, 2^381066478 is an apocalyptic number.

381066478 is a deficient number, since it is larger than the sum of its proper divisors (251141042).

381066478 is a wasteful number, since it uses less digits than its factorization.

381066478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396171.

The product of its (nonzero) digits is 193536, while the sum is 43.

The square root of 381066478 is about 19520.9241072240. The cubic root of 381066478 is about 724.9926137971.

The spelling of 381066478 in words is "three hundred eighty-one million, sixty-six thousand, four hundred seventy-eight".