400123226 has 16 divisors (see below), whose sum is σ = 629572608. Its totient is φ = 190357200.

The previous prime is 400123219. The next prime is 400123277. The reversal of 400123226 is 622321004.

It is a junction number, because it is equal to n+sod(n) for n = 400123198 and 400123207.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 13985 + ... + 31556.

It is an arithmetic number, because the mean of its divisors is an integer number (39348288).

Almost surely, 2^400123226 is an apocalyptic number.

400123226 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

400123226 is a deficient number, since it is larger than the sum of its proper divisors (229449382).

400123226 is a wasteful number, since it uses less digits than its factorization.

400123226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45757.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 400123226 is about 20003.0804127764. The cubic root of 400123226 is about 736.8819533708.

The spelling of 400123226 in words is "four hundred million, one hundred twenty-three thousand, two hundred twenty-six".