401125244 has 72 divisors (see below), whose sum is σ = 817437600. Its totient is φ = 170881920.

The previous prime is 401125223. The next prime is 401125259. The reversal of 401125244 is 442521104.

It is a super-2 number, since 2×401125244² = 321802922748119072, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1149182 + ... + 1149530.

It is an arithmetic number, because the mean of its divisors is an integer number (11353300).

Almost surely, 2^401125244 is an apocalyptic number.

It is an amenable number.

401125244 is an abundant number, since it is smaller than the sum of its proper divisors (416312356).

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

401125244 is a wasteful number, since it uses less digits than its factorization.

401125244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451 (or 418 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 401125244 is about 20028.1113438087. Note that the first 3 decimals coincide. The cubic root of 401125244 is about 737.4965585974.

Adding to 401125244 its reverse (442521104), we get a palindrome (843646348).

The spelling of 401125244 in words is "four hundred one million, one hundred twenty-five thousand, two hundred forty-four".