422684621 has 8 divisors (see below), whose sum is σ = 455784000. Its totient is φ = 390670560.

The previous prime is 422684611. The next prime is 422684623. The reversal of 422684621 is 126486224.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-422684621 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 (422684623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 270521 + ... + 272078.

It is an arithmetic number, because the mean of its divisors is an integer number (56973000).

Almost surely, 2^422684621 is an apocalyptic number.

422684621 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

422684621 is a deficient number, since it is larger than the sum of its proper divisors (33099379).

422684621 is a wasteful number, since it uses less digits than its factorization.

422684621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542659.

The product of its digits is 36864, while the sum is 35.

The square root of 422684621 is about 20559.2952457033. The cubic root of 422684621 is about 750.4794688216.

The spelling of 422684621 in words is "four hundred twenty-two million, six hundred eighty-four thousand, six hundred twenty-one".