1420430423 has 4 divisors (see below), whose sum is σ = 1439888448. Its totient is φ = 1400972400.

The previous prime is 1420430413. The next prime is 1420430441. The reversal of 1420430423 is 3240340241.

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

It is a cyclic number.

It is not a de Polignac number, because 1420430423 - 2¹⁰ = 1420429399 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 (1420430413) 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, 9728903 + ... + 9729048.

It is an arithmetic number, because the mean of its divisors is an integer number (359972112).

Almost surely, 2^1420430423 is an apocalyptic number.

1420430423 is a deficient number, since it is larger than the sum of its proper divisors (19458025).

1420430423 is an equidigital number, since it uses as much as digits as its factorization.

1420430423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19458024.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 1420430423 is about 37688.5980503388. The cubic root of 1420430423 is about 1124.1044192261.

Adding to 1420430423 its reverse (3240340241), we get a palindrome (4660770664).

The spelling of 1420430423 in words is "one billion, four hundred twenty million, four hundred thirty thousand, four hundred twenty-three".