400413222 has 24 divisors (see below), whose sum is σ = 946431720. Its totient is φ = 121337280.

The previous prime is 400413173. The next prime is 400413229. The reversal of 400413222 is 222314004.

400413222 is a `hidden beast` number, since 400 + 41 + 3 + 222 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 400413195 and 400413204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400413229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1010947 + ... + 1011342.

It is an arithmetic number, because the mean of its divisors is an integer number (39434655).

Almost surely, 2^400413222 is an apocalyptic number.

400413222 is an abundant number, since it is smaller than the sum of its proper divisors (546018498).

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

400413222 is a wasteful number, since it uses less digits than its factorization.

400413222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2022308 (or 2022305 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 400413222 is about 20010.3278833706. The cubic root of 400413222 is about 737.0599328864.

Adding to 400413222 its reverse (222314004), we get a palindrome (622727226).

The spelling of 400413222 in words is "four hundred million, four hundred thirteen thousand, two hundred twenty-two".