422437421 has 8 divisors (see below), whose sum is σ = 482951040. Its totient is φ = 361965168.

The previous prime is 422437417. The next prime is 422437423. The reversal of 422437421 is 124734224.

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

It is a cyclic number.

It is not a de Polignac number, because 422437421 - 2² = 422437417 is a prime.

It is a super-2 number, since 2×422437421² = 356906749322262482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422437423) 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, 16040 + ... + 33198.

It is an arithmetic number, because the mean of its divisors is an integer number (60368880).

Almost surely, 2^422437421 is an apocalyptic number.

It is an amenable number.

422437421 is a deficient number, since it is larger than the sum of its proper divisors (60513619).

422437421 is a wasteful number, since it uses less digits than its factorization.

422437421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20683.

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

The square root of 422437421 is about 20553.2824872330. The cubic root of 422437421 is about 750.3331385216. Note that the first 3 decimals are identical.

The spelling of 422437421 in words is "four hundred twenty-two million, four hundred thirty-seven thousand, four hundred twenty-one".