381620070 has 48 divisors (see below), whose sum is σ = 1068539472. Its totient is φ = 93936960.

The previous prime is 381620039. The next prime is 381620089. The reversal of 381620070 is 70026183.

381620070 is a `hidden beast` number, since 38 + 1 + 620 + 0 + 7 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 161916 + ... + 164255.

It is an arithmetic number, because the mean of its divisors is an integer number (22261239).

Almost surely, 2^381620070 is an apocalyptic number.

381620070 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

381620070 is an abundant number, since it is smaller than the sum of its proper divisors (686919402).

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

381620070 is a wasteful number, since it uses less digits than its factorization.

381620070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326197 (or 326194 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 381620070 is about 19535.0984128568. The cubic root of 381620070 is about 725.3435201245.

The spelling of 381620070 in words is "three hundred eighty-one million, six hundred twenty thousand, seventy".