381340932 has 72 divisors (see below), whose sum is σ = 1039991904. Its totient is φ = 108436608.

The previous prime is 381340931. The next prime is 381340937. The reversal of 381340932 is 239043183.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 381340893 and 381340902.

It is not an unprimeable number, because it can be changed into a prime (381340931) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 132048 + ... + 134904.

It is an arithmetic number, because the mean of its divisors is an integer number (14444332).

Almost surely, 2^381340932 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 381340932, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (519995952).

381340932 is an abundant number, since it is smaller than the sum of its proper divisors (658650972).

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

381340932 is a wasteful number, since it uses less digits than its factorization.

381340932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3105 (or 3096 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 381340932 is about 19527.9525808519. The cubic root of 381340932 is about 725.1666248809.

The spelling of 381340932 in words is "three hundred eighty-one million, three hundred forty thousand, nine hundred thirty-two".