400222023 has 8 divisors (see below), whose sum is σ = 561715200. Its totient is φ = 252771768.

The previous prime is 400222019. The next prime is 400222063. The reversal of 400222023 is 320222004.

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

It is not a de Polignac number, because 400222023 - 2² = 400222019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 400221993 and 400222011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400222063) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3510663 + ... + 3510776.

It is an arithmetic number, because the mean of its divisors is an integer number (70214400).

Almost surely, 2^400222023 is an apocalyptic number.

400222023 is a deficient number, since it is larger than the sum of its proper divisors (161493177).

400222023 is a wasteful number, since it uses less digits than its factorization.

400222023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7021461.

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 400222023 is about 20005.5498049916. The cubic root of 400222023 is about 736.9425978010.

Adding to 400222023 its reverse (320222004), we get a palindrome (720444027).

The spelling of 400222023 in words is "four hundred million, two hundred twenty-two thousand, twenty-three".