381969722 has 16 divisors (see below), whose sum is σ = 591058080. Its totient is φ = 184996368.

The previous prime is 381969703. The next prime is 381969727. The reversal of 381969722 is 227969183.

It is a happy number.

It is a super-4 number, since 4×381969722⁴ (a number of 35 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (381969727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5429 + ... + 28167.

It is an arithmetic number, because the mean of its divisors is an integer number (36941130).

Almost surely, 2^381969722 is an apocalyptic number.

381969722 is a deficient number, since it is larger than the sum of its proper divisors (209088358).

381969722 is a wasteful number, since it uses less digits than its factorization.

381969722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23005.

The product of its digits is 326592, while the sum is 47.

The square root of 381969722 is about 19544.0456917190. The cubic root of 381969722 is about 725.5649798208.

The spelling of 381969722 in words is "three hundred eighty-one million, nine hundred sixty-nine thousand, seven hundred twenty-two".