400097226 has 8 divisors (see below), whose sum is σ = 800194464. Its totient is φ = 133365740.

The previous prime is 400097219. The next prime is 400097237. The reversal of 400097226 is 622790004.

It is a happy number.

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

400097226 is an admirable number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 400097193 and 400097202.

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, 33341430 + ... + 33341441.

It is an arithmetic number, because the mean of its divisors is an integer number (100024308).

Almost surely, 2^400097226 is an apocalyptic number.

400097226 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

400097226 is a wasteful number, since it uses less digits than its factorization.

400097226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66682876.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 400097226 is about 20002.4305023165. The cubic root of 400097226 is about 736.8659921664.

The spelling of 400097226 in words is "four hundred million, ninety-seven thousand, two hundred twenty-six".