1406426405 has 16 divisors (see below), whose sum is σ = 1797707520. Its totient is φ = 1052604672.

The previous prime is 1406426393. The next prime is 1406426443. The reversal of 1406426405 is 5046246041.

It is a cyclic number.

It is not a de Polignac number, because 1406426405 - 2¹⁴ = 1406410021 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35345 + ... + 63734.

It is an arithmetic number, because the mean of its divisors is an integer number (112356720).

Almost surely, 2^1406426405 is an apocalyptic number.

It is an amenable number.

1406426405 is a deficient number, since it is larger than the sum of its proper divisors (391281115).

1406426405 is a wasteful number, since it uses less digits than its factorization.

1406426405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99268.

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 1406426405 is about 37502.3519929084. The cubic root of 1406426405 is about 1120.3980316260.

The spelling of 1406426405 in words is "one billion, four hundred six million, four hundred twenty-six thousand, four hundred five".