400415226 has 16 divisors (see below), whose sum is σ = 819454944. Its totient is φ = 130367664.

The previous prime is 400415179. The next prime is 400415227. The reversal of 400415226 is 622514004.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 400415196 and 400415205.

It is not an unprimeable number, because it can be changed into a prime (400415227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 775741 + ... + 776256.

It is an arithmetic number, because the mean of its divisors is an integer number (51215934).

Almost surely, 2^400415226 is an apocalyptic number.

400415226 is an abundant number, since it is smaller than the sum of its proper divisors (419039718).

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

400415226 is a wasteful number, since it uses less digits than its factorization.

400415226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1552045.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 400415226 is about 20010.3779574500. The cubic root of 400415226 is about 737.0611625042.

The spelling of 400415226 in words is "four hundred million, four hundred fifteen thousand, two hundred twenty-six".