381312048 has 80 divisors (see below), whose sum is σ = 1070931456. Its totient is φ = 116209920.

The previous prime is 381312017. The next prime is 381312109. The reversal of 381312048 is 840213183.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63913 + ... + 69623.

Almost surely, 2^381312048 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 381312048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (535465728).

381312048 is an abundant number, since it is smaller than the sum of its proper divisors (689619408).

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

381312048 is a wasteful number, since it uses less digits than its factorization.

381312048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5842 (or 5836 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 381312048 is about 19527.2130115897. The cubic root of 381312048 is about 725.1483155939.

The spelling of 381312048 in words is "three hundred eighty-one million, three hundred twelve thousand, forty-eight".