400222174 has 8 divisors (see below), whose sum is σ = 654909048. Its totient is φ = 181919160.

The previous prime is 400222153. The next prime is 400222181. The reversal of 400222174 is 471222004.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×400222174² = 320355577122572552, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22), and also a Moran number because the ratio is a prime number: 18191917 = 400222174 / (4 + 0 + 0 + 2 + 2 + 2 + 1 + 7 + 4).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9095937 + ... + 9095980.

It is an arithmetic number, because the mean of its divisors is an integer number (81863631).

Almost surely, 2^400222174 is an apocalyptic number.

400222174 is a deficient number, since it is larger than the sum of its proper divisors (254686874).

400222174 is a wasteful number, since it uses less digits than its factorization.

400222174 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18191930.

The product of its (nonzero) digits is 896, while the sum is 22.

The square root of 400222174 is about 20005.5535789440. The cubic root of 400222174 is about 736.9426904815.

Adding to 400222174 its reverse (471222004), we get a palindrome (871444178).

The spelling of 400222174 in words is "four hundred million, two hundred twenty-two thousand, one hundred seventy-four".