420726422 has 8 divisors (see below), whose sum is σ = 644517216. Its totient is φ = 205887352.

The previous prime is 420726413. The next prime is 420726431. The reversal of 420726422 is 224627024.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (420726413) and next prime (420726431).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2237813 + ... + 2238000.

It is an arithmetic number, because the mean of its divisors is an integer number (80564652).

Almost surely, 2^420726422 is an apocalyptic number.

420726422 is a deficient number, since it is larger than the sum of its proper divisors (223790794).

420726422 is a wasteful number, since it uses less digits than its factorization.

420726422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4475862.

The product of its (nonzero) digits is 10752, while the sum is 29.

The square root of 420726422 is about 20511.6167573402. The cubic root of 420726422 is about 749.3187425569.

The spelling of 420726422 in words is "four hundred twenty million, seven hundred twenty-six thousand, four hundred twenty-two".