381027270 has 128 divisors (see below), whose sum is σ = 1016064000. Its totient is φ = 90874368.

The previous prime is 381027181. The next prime is 381027281. The reversal of 381027270 is 72720183.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2557156 + ... + 2557304.

It is an arithmetic number, because the mean of its divisors is an integer number (7938000).

Almost surely, 2^381027270 is an apocalyptic number.

381027270 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 381027270, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (508032000).

381027270 is an abundant number, since it is smaller than the sum of its proper divisors (635036730).

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

381027270 is a wasteful number, since it uses less digits than its factorization.

381027270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334.

The product of its (nonzero) digits is 4704, while the sum is 30.

The square root of 381027270 is about 19519.9198256550. The cubic root of 381027270 is about 724.9677480698.

The spelling of 381027270 in words is "three hundred eighty-one million, twenty-seven thousand, two hundred seventy".