381739952 has 120 divisors (see below), whose sum is σ = 870296976. Its totient is φ = 160704000.

The previous prime is 381739931. The next prime is 381739961. The reversal of 381739952 is 259937183.

It is a junction number, because it is equal to n+sod(n) for n = 381739897 and 381739906.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6258002 + ... + 6258062.

Almost surely, 2^381739952 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 381739952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (435148488).

381739952 is an abundant number, since it is smaller than the sum of its proper divisors (488557024).

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

381739952 is a wasteful number, since it uses less digits than its factorization.

381739952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179 (or 142 counting only the distinct ones).

The product of its digits is 408240, while the sum is 47.

The square root of 381739952 is about 19538.1665465314. The cubic root of 381739952 is about 725.4194652288.

The spelling of 381739952 in words is "three hundred eighty-one million, seven hundred thirty-nine thousand, nine hundred fifty-two".