401223425 has 6 divisors (see below), whose sum is σ = 497517078. Its totient is φ = 320978720.

The previous prime is 401223283. The next prime is 401223451. The reversal of 401223425 is 524322104.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 36566209 + 364657216 = 6047^2 + 19096^2 .

It is a de Polignac number, because none of the positive numbers 2^k-401223425 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 401223425.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8024444 + ... + 8024493.

It is an arithmetic number, because the mean of its divisors is an integer number (82919513).

Almost surely, 2^401223425 is an apocalyptic number.

It is an amenable number.

401223425 is a deficient number, since it is larger than the sum of its proper divisors (96293653).

401223425 is a wasteful number, since it uses less digits than its factorization.

401223425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16048947 (or 16048942 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 401223425 is about 20030.5622736857. The cubic root of 401223425 is about 737.5567245463.

Adding to 401223425 its reverse (524322104), we get a palindrome (925545529).

The spelling of 401223425 in words is "four hundred one million, two hundred twenty-three thousand, four hundred twenty-five".