420022622 has 4 divisors (see below), whose sum is σ = 630033936. Its totient is φ = 210011310.

The previous prime is 420022613. The next prime is 420022633. The reversal of 420022622 is 226220024.

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

It is a junction number, because it is equal to n+sod(n) for n = 420022594 and 420022603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105005654 + ... + 105005657.

It is an arithmetic number, because the mean of its divisors is an integer number (157508484).

Almost surely, 2^420022622 is an apocalyptic number.

420022622 is a deficient number, since it is larger than the sum of its proper divisors (210011314).

420022622 is a wasteful number, since it uses less digits than its factorization.

420022622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210011313.

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

The square root of 420022622 is about 20494.4534447738. The cubic root of 420022622 is about 748.9006839782.

Adding to 420022622 its reverse (226220024), we get a palindrome (646242646).

The spelling of 420022622 in words is "four hundred twenty million, twenty-two thousand, six hundred twenty-two".