420142622 has 8 divisors (see below), whose sum is σ = 647246856. Its totient is φ = 204393672.

The previous prime is 420142589. The next prime is 420142661. The reversal of 420142622 is 226241024.

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, 2838728 + ... + 2838875.

It is an arithmetic number, because the mean of its divisors is an integer number (80905857).

Almost surely, 2^420142622 is an apocalyptic number.

420142622 is a deficient number, since it is larger than the sum of its proper divisors (227104234).

420142622 is a wasteful number, since it uses less digits than its factorization.

420142622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5677642.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 420142622 is about 20497.3808570754. The cubic root of 420142622 is about 748.9719972205.

Adding to 420142622 its reverse (226241024), we get a palindrome (646383646).

The spelling of 420142622 in words is "four hundred twenty million, one hundred forty-two thousand, six hundred twenty-two".