1406405026 has 16 divisors (see below), whose sum is σ = 2273652864. Its totient is φ = 648604944.

The previous prime is 1406404939. The next prime is 1406405047. The reversal of 1406405026 is 6205046041.

It is a junction number, because it is equal to n+sod(n) for n = 1406404985 and 1406405003.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14121 + ... + 54883.

It is an arithmetic number, because the mean of its divisors is an integer number (142103304).

Almost surely, 2^1406405026 is an apocalyptic number.

1406405026 is a deficient number, since it is larger than the sum of its proper divisors (867247838).

1406405026 is a wasteful number, since it uses less digits than its factorization.

1406405026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42105.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 1406405026 is about 37502.0669563692. The cubic root of 1406405026 is about 1120.3923545637.

The spelling of 1406405026 in words is "one billion, four hundred six million, four hundred five thousand, twenty-six".