420014423 has 4 divisors (see below), whose sum is σ = 420680688. Its totient is φ = 419348160.

The previous prime is 420014401. The next prime is 420014429. The reversal of 420014423 is 324410024.

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 420014423 - 2¹⁸ = 419752279 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 420014395 and 420014404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420014429) 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, 332186 + ... + 333447.

It is an arithmetic number, because the mean of its divisors is an integer number (105170172).

Almost surely, 2^420014423 is an apocalyptic number.

420014423 is a deficient number, since it is larger than the sum of its proper divisors (666265).

420014423 is an equidigital number, since it uses as much as digits as its factorization.

420014423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666264.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 420014423 is about 20494.2534140671. The cubic root of 420014423 is about 748.8958110052.

Adding to 420014423 its reverse (324410024), we get a palindrome (744424447).

The spelling of 420014423 in words is "four hundred twenty million, fourteen thousand, four hundred twenty-three".