420120279 has 6 divisors (see below), whose sum is σ = 606840416. Its totient is φ = 280080180.

The previous prime is 420120271. The next prime is 420120287. The reversal of 420120279 is 972021024.

It is an interprime number because it is at equal distance from previous prime (420120271) and next prime (420120287).

It is not a de Polignac number, because 420120279 - 2³ = 420120271 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 (420120271) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 23340007 + ... + 23340024.

Almost surely, 2^420120279 is an apocalyptic number.

420120279 is a deficient number, since it is larger than the sum of its proper divisors (186720137).

420120279 is a wasteful number, since it uses less digits than its factorization.

420120279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46680037 (or 46680034 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 420120279 is about 20496.8358289761. The cubic root of 420120279 is about 748.9587203179.

The spelling of 420120279 in words is "four hundred twenty million, one hundred twenty thousand, two hundred seventy-nine".