1406470909 has 2 divisors, whose sum is σ = 1406470910. Its totient is φ = 1406470908.

The previous prime is 1406470873. The next prime is 1406470931. The reversal of 1406470909 is 9090746041.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 965344900 + 441126009 = 31070^2 + 21003^2 .

It is a cyclic number.

It is not a de Polignac number, because 1406470909 - 2²⁵ = 1372916477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1406471909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 703235454 + 703235455.

It is an arithmetic number, because the mean of its divisors is an integer number (703235455).

Almost surely, 2^1406470909 is an apocalyptic number.

It is an amenable number.

1406470909 is a deficient number, since it is larger than the sum of its proper divisors (1).

1406470909 is an equidigital number, since it uses as much as digits as its factorization.

1406470909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 1406470909 is about 37502.9453376665. The cubic root of 1406470909 is about 1120.4098492056.

The spelling of 1406470909 in words is "one billion, four hundred six million, four hundred seventy thousand, nine hundred nine".