1400544426 has 16 divisors (see below), whose sum is σ = 2807942400. Its totient is φ = 465705888.

The previous prime is 1400544281. The next prime is 1400544433. The reversal of 1400544426 is 6244450041.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1400544393 and 1400544402.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 282906 + ... + 287813.

It is an arithmetic number, because the mean of its divisors is an integer number (175496400).

Almost surely, 2^1400544426 is an apocalyptic number.

1400544426 is an abundant number, since it is smaller than the sum of its proper divisors (1407397974).

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

1400544426 is a wasteful number, since it uses less digits than its factorization.

1400544426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571133.

The product of its (nonzero) digits is 15360, while the sum is 30.

The square root of 1400544426 is about 37423.8483590344. The cubic root of 1400544426 is about 1118.8339336089.

Adding to 1400544426 its reverse (6244450041), we get a palindrome (7644994467).

The spelling of 1400544426 in words is "one billion, four hundred million, five hundred forty-four thousand, four hundred twenty-six".