1401426505 has 16 divisors (see below), whose sum is σ = 1714176000. Its totient is φ = 1099604160.

The previous prime is 1401426493. The next prime is 1401426511. The reversal of 1401426505 is 5056241041.

It is not a de Polignac number, because 1401426505 - 2¹⁵ = 1401393737 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103096 + ... + 115894.

It is an arithmetic number, because the mean of its divisors is an integer number (107136000).

Almost surely, 2^1401426505 is an apocalyptic number.

It is an amenable number.

1401426505 is a deficient number, since it is larger than the sum of its proper divisors (312749495).

1401426505 is a wasteful number, since it uses less digits than its factorization.

1401426505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13224.

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 1401426505 is about 37435.6314892643. The cubic root of 1401426505 is about 1119.0687691449.

Adding to 1401426505 its reverse (5056241041), we get a palindrome (6457667546).

The spelling of 1401426505 in words is "one billion, four hundred one million, four hundred twenty-six thousand, five hundred five".