401223224 has 48 divisors (see below), whose sum is σ = 794329200. Its totient is φ = 189964544.

The previous prime is 401223217. The next prime is 401223233. The reversal of 401223224 is 422322104.

It is a junction number, because it is equal to n+sod(n) for n = 401223196 and 401223205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 477797 + ... + 478635.

It is an arithmetic number, because the mean of its divisors is an integer number (16548525).

Almost surely, 2^401223224 is an apocalyptic number.

It is an amenable number.

401223224 is a deficient number, since it is larger than the sum of its proper divisors (393105976).

401223224 is a wasteful number, since it uses less digits than its factorization.

401223224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1004 (or 977 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 401223224 is about 20030.5572563521. The cubic root of 401223224 is about 737.5566013822.

Adding to 401223224 its reverse (422322104), we get a palindrome (823545328).

The spelling of 401223224 in words is "four hundred one million, two hundred twenty-three thousand, two hundred twenty-four".