381032130 has 32 divisors (see below), whose sum is σ = 915663168. Its totient is φ = 101476800.

The previous prime is 381032111. The next prime is 381032161. The reversal of 381032130 is 31230183.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 381032097 and 381032106.

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, 16500 + ... + 32160.

It is an arithmetic number, because the mean of its divisors is an integer number (28614474).

Almost surely, 2^381032130 is an apocalyptic number.

381032130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

381032130 is an abundant number, since it is smaller than the sum of its proper divisors (534631038).

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

381032130 is a wasteful number, since it uses less digits than its factorization.

381032130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16482.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 381032130 is about 19520.0443134743. The cubic root of 381032130 is about 724.9708303761.

The spelling of 381032130 in words is "three hundred eighty-one million, thirty-two thousand, one hundred thirty".