1406444173 has 4 divisors (see below), whose sum is σ = 1411672860. Its totient is φ = 1401215488.

The previous prime is 1406444167. The next prime is 1406444203. The reversal of 1406444173 is 3714446041.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 598634089 + 807810084 = 24467^2 + 28422^2 .

It is a cyclic number.

It is not a de Polignac number, because 1406444173 - 2⁵ = 1406444141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1406444573) 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, 2613940 + ... + 2614477.

It is an arithmetic number, because the mean of its divisors is an integer number (352918215).

Almost surely, 2^1406444173 is an apocalyptic number.

It is an amenable number.

1406444173 is a deficient number, since it is larger than the sum of its proper divisors (5228687).

1406444173 is an equidigital number, since it uses as much as digits as its factorization.

1406444173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5228686.

The product of its (nonzero) digits is 32256, while the sum is 34.

The square root of 1406444173 is about 37502.5888839691. The cubic root of 1406444173 is about 1120.4027497656.

The spelling of 1406444173 in words is "one billion, four hundred six million, four hundred forty-four thousand, one hundred seventy-three".