381371448 has 16 divisors (see below), whose sum is σ = 953428680. Its totient is φ = 127123808.

The previous prime is 381371383. The next prime is 381371449. The reversal of 381371448 is 844173183.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381371449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7945215 + ... + 7945262.

Almost surely, 2^381371448 is an apocalyptic number.

It is an amenable number.

381371448 is an abundant number, since it is smaller than the sum of its proper divisors (572057232).

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

381371448 is a wasteful number, since it uses less digits than its factorization.

381371448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15890486 (or 15890482 counting only the distinct ones).

The product of its digits is 64512, while the sum is 39.

The square root of 381371448 is about 19528.7339067334. The cubic root of 381371448 is about 725.1859676724.

The spelling of 381371448 in words is "three hundred eighty-one million, three hundred seventy-one thousand, four hundred forty-eight".