19714445 has 4 divisors (see below), whose sum is σ = 23657340. Its totient is φ = 15771552.

The previous prime is 19714439. The next prime is 19714459. The reversal of 19714445 is 54441791.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54441791 = 157 ⋅346763.

It can be written as a sum of positive squares in 2 ways, for example, as 4206601 + 15507844 = 2051^2 + 3938^2 .

It is a cyclic number.

It is not a de Polignac number, because 19714445 - 2²⁰ = 18665869 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1971440 + ... + 1971449.

It is an arithmetic number, because the mean of its divisors is an integer number (5914335).

Almost surely, 2^19714445 is an apocalyptic number.

It is an amenable number.

19714445 is a deficient number, since it is larger than the sum of its proper divisors (3942895).

19714445 is an equidigital number, since it uses as much as digits as its factorization.

19714445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3942894.

The product of its digits is 20160, while the sum is 35.

The square root of 19714445 is about 4440.0951566380. The cubic root of 19714445 is about 270.1437049366.

The spelling of 19714445 in words is "nineteen million, seven hundred fourteen thousand, four hundred forty-five".