400222104 has 16 divisors (see below), whose sum is σ = 1000555320. Its totient is φ = 133407360.

The previous prime is 400222093. The next prime is 400222117. The reversal of 400222104 is 401222004.

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, 8337937 + ... + 8337984.

Almost surely, 2^400222104 is an apocalyptic number.

It is an amenable number.

400222104 is an abundant number, since it is smaller than the sum of its proper divisors (600333216).

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

400222104 is a wasteful number, since it uses less digits than its factorization.

400222104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16675930 (or 16675926 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 400222104 is about 20005.5518294297. The cubic root of 400222104 is about 736.9426475170.

Adding to 400222104 its reverse (401222004), we get a palindrome (801444108).

It can be divided in two parts, 4002 and 22104, that added together give a triangular number (26106 = T₂₂₈).

The spelling of 400222104 in words is "four hundred million, two hundred twenty-two thousand, one hundred four".