381338552 has 16 divisors (see below), whose sum is σ = 817154160. Its totient is φ = 163430784.

The previous prime is 381338549. The next prime is 381338593. The reversal of 381338552 is 255833183.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3404753 + ... + 3404864.

It is an arithmetic number, because the mean of its divisors is an integer number (51072135).

Almost surely, 2^381338552 is an apocalyptic number.

It is an amenable number.

381338552 is an abundant number, since it is smaller than the sum of its proper divisors (435815608).

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

381338552 is a wasteful number, since it uses less digits than its factorization.

381338552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6809630 (or 6809626 counting only the distinct ones).

The product of its digits is 86400, while the sum is 38.

The square root of 381338552 is about 19527.8916424687. The cubic root of 381338552 is about 725.1651162569.

The spelling of 381338552 in words is "three hundred eighty-one million, three hundred thirty-eight thousand, five hundred fifty-two".