1420023413 has 8 divisors (see below), whose sum is σ = 1503903960. Its totient is φ = 1336181760.

The previous prime is 1420023403. The next prime is 1420023419. The reversal of 1420023413 is 3143200241.

It can be written as a sum of positive squares in 4 ways, for example, as 96373489 + 1323649924 = 9817^2 + 36382^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1420023413 - 2¹² = 1420019317 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1420023419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102653 + ... + 115661.

It is an arithmetic number, because the mean of its divisors is an integer number (187987995).

Almost surely, 2^1420023413 is an apocalyptic number.

It is an amenable number.

1420023413 is a deficient number, since it is larger than the sum of its proper divisors (83880547).

1420023413 is a wasteful number, since it uses less digits than its factorization.

1420023413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19447.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1420023413 is about 37683.1980198072. The cubic root of 1420023413 is about 1123.9970420446.

Adding to 1420023413 its reverse (3143200241), we get a palindrome (4563223654).

The spelling of 1420023413 in words is "one billion, four hundred twenty million, twenty-three thousand, four hundred thirteen".