381593750 has 28 divisors (see below), whose sum is σ = 715537716. Its totient is φ = 152625000.

The previous prime is 381593749. The next prime is 381593753. The reversal of 381593750 is 57395183.

It is a happy number.

It is a super-2 number, since 2×381593750² = 291227580078125000, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 381593698 and 381593707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381593753) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 25145 + ... + 37355.

Almost surely, 2^381593750 is an apocalyptic number.

381593750 is a deficient number, since it is larger than the sum of its proper divisors (333943966).

381593750 is an frugal number, since it uses more digits than its factorization.

381593750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12243 (or 12218 counting only the distinct ones).

The product of its (nonzero) digits is 113400, while the sum is 41.

The square root of 381593750 is about 19534.4247419779. The cubic root of 381593750 is about 725.3268443066.

The spelling of 381593750 in words is "three hundred eighty-one million, five hundred ninety-three thousand, seven hundred fifty".