381767250 has 32 divisors (see below), whose sum is σ = 952892928. Its totient is φ = 101804400.

The previous prime is 381767227. The next prime is 381767251. The reversal of 381767250 is 52767183.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 381767199 and 381767208.

It is not an unprimeable number, because it can be changed into a prime (381767251) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 253762 + ... + 255261.

It is an arithmetic number, because the mean of its divisors is an integer number (29777904).

Almost surely, 2^381767250 is an apocalyptic number.

381767250 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

381767250 is an abundant number, since it is smaller than the sum of its proper divisors (571125678).

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

381767250 is a wasteful number, since it uses less digits than its factorization.

381767250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 509043 (or 509033 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 39.

The square root of 381767250 is about 19538.8651154564. The cubic root of 381767250 is about 725.4367562567.

The spelling of 381767250 in words is "three hundred eighty-one million, seven hundred sixty-seven thousand, two hundred fifty".