381577722 has 48 divisors (see below), whose sum is σ = 813084480. Its totient is φ = 119355264.

The previous prime is 381577681. The next prime is 381577739. The reversal of 381577722 is 227775183.

Its product of digits (164640) is a multiple of the sum of its prime factors (1715).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 243979 + ... + 245537.

It is an arithmetic number, because the mean of its divisors is an integer number (16939260).

Almost surely, 2^381577722 is an apocalyptic number.

381577722 is an abundant number, since it is smaller than the sum of its proper divisors (431506758).

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

381577722 is a wasteful number, since it uses less digits than its factorization.

381577722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1715 (or 1696 counting only the distinct ones).

The product of its digits is 164640, while the sum is 42.

The square root of 381577722 is about 19534.0144875548. The cubic root of 381577722 is about 725.3166889154.

The spelling of 381577722 in words is "three hundred eighty-one million, five hundred seventy-seven thousand, seven hundred twenty-two".