401243450 has 12 divisors (see below), whose sum is σ = 746312910. Its totient is φ = 160497360.

The previous prime is 401243431. The next prime is 401243471. The reversal of 401243450 is 54342104.

It can be written as a sum of positive squares in 3 ways, for example, as 338817649 + 62425801 = 18407^2 + 7901^2 .

It is a Curzon 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 5 ways as a sum of consecutive naturals, for example, 4012385 + ... + 4012484.

Almost surely, 2^401243450 is an apocalyptic number.

401243450 is a deficient number, since it is larger than the sum of its proper divisors (345069460).

401243450 is a wasteful number, since it uses less digits than its factorization.

401243450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8024881 (or 8024876 counting only the distinct ones).

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

The square root of 401243450 is about 20031.0621286042. The cubic root of 401243450 is about 737.5689947900.

Adding to 401243450 its reverse (54342104), we get a palindrome (455585554).

The spelling of 401243450 in words is "four hundred one million, two hundred forty-three thousand, four hundred fifty".