1423719841 has 4 divisors (see below), whose sum is σ = 1424079684. Its totient is φ = 1423360000.

The previous prime is 1423719821. The next prime is 1423719863. The reversal of 1423719841 is 1489173241.

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 795465616 + 628254225 = 28204^2 + 25065^2 .

It is a cyclic number.

It is not a de Polignac number, because 1423719841 - 2⁹ = 1423719329 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1423719794 and 1423719803.

It is not an unprimeable number, because it can be changed into a prime (1423719811) 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, 173920 + ... + 181921.

It is an arithmetic number, because the mean of its divisors is an integer number (356019921).

Almost surely, 2^1423719841 is an apocalyptic number.

It is an amenable number.

1423719841 is a deficient number, since it is larger than the sum of its proper divisors (359843).

1423719841 is an equidigital number, since it uses as much as digits as its factorization.

1423719841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359842.

The product of its digits is 48384, while the sum is 40.

The square root of 1423719841 is about 37732.2122463022. The cubic root of 1423719841 is about 1124.9714800342.

The spelling of 1423719841 in words is "one billion, four hundred twenty-three million, seven hundred nineteen thousand, eight hundred forty-one".