1406342906 has 8 divisors (see below), whose sum is σ = 2109928500. Its totient is φ = 703033408.

The previous prime is 1406342897. The next prime is 1406342909. The reversal of 1406342906 is 6092436041.

It can be written as a sum of positive squares in 2 ways, for example, as 1252806025 + 153536881 = 35395^2 + 12391^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1406342909) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55781 + ... + 76968.

Almost surely, 2^1406342906 is an apocalyptic number.

1406342906 is a deficient number, since it is larger than the sum of its proper divisors (703585594).

1406342906 is a wasteful number, since it uses less digits than its factorization.

1406342906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138048.

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 1406342906 is about 37501.2387262074. The cubic root of 1406342906 is about 1120.3758586524.

Adding to 1406342906 its reverse (6092436041), we get a palindrome (7498778947).

The spelling of 1406342906 in words is "one billion, four hundred six million, three hundred forty-two thousand, nine hundred six".