381285830 has 8 divisors (see below), whose sum is σ = 686314512. Its totient is φ = 152514328.

The previous prime is 381285799. The next prime is 381285841. The reversal of 381285830 is 38582183.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19064282 + ... + 19064301.

It is an arithmetic number, because the mean of its divisors is an integer number (85789314).

Almost surely, 2^381285830 is an apocalyptic number.

381285830 is a deficient number, since it is larger than the sum of its proper divisors (305028682).

381285830 is a wasteful number, since it uses less digits than its factorization.

381285830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38128590.

The product of its (nonzero) digits is 46080, while the sum is 38.

The square root of 381285830 is about 19526.5416804922. The cubic root of 381285830 is about 725.1316954579.

The spelling of 381285830 in words is "three hundred eighty-one million, two hundred eighty-five thousand, eight hundred thirty".