381316250 has 40 divisors (see below), whose sum is σ = 816863520. Its totient is φ = 130734000.

The previous prime is 381316249. The next prime is 381316267. The reversal of 381316250 is 52613183.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 13040 + ... + 30539.

It is an arithmetic number, because the mean of its divisors is an integer number (20421588).

Almost surely, 2^381316250 is an apocalyptic number.

381316250 is an abundant number, since it is smaller than the sum of its proper divisors (435547270).

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

381316250 is an equidigital number, since it uses as much as digits as its factorization.

381316250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43608 (or 43593 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 381316250 is about 19527.3206047322. The cubic root of 381316250 is about 725.1509792583.

The spelling of 381316250 in words is "three hundred eighty-one million, three hundred sixteen thousand, two hundred fifty".