381618700 has 18 divisors (see below), whose sum is σ = 828112796. Its totient is φ = 152647440.

The previous prime is 381618689. The next prime is 381618751. The reversal of 381618700 is 7816183.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1907994 + ... + 1908193.

Almost surely, 2^381618700 is an apocalyptic number.

It is an amenable number.

381618700 is an abundant number, since it is smaller than the sum of its proper divisors (446494096).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

381618700 is a wasteful number, since it uses less digits than its factorization.

381618700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3816201 (or 3816194 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 381618700 is about 19535.0633477345. The cubic root of 381618700 is about 725.3426521392.

The spelling of 381618700 in words is "three hundred eighty-one million, six hundred eighteen thousand, seven hundred".