422076421 has 8 divisors (see below), whose sum is σ = 455074424. Its totient is φ = 389154240.

The previous prime is 422076401. The next prime is 422076443. The reversal of 422076421 is 124670224.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 8767521 + 413308900 = 2961^2 + 20330^2 .

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 422076421 - 2⁷ = 422076293 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 422076421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422076401) 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, 7110 + ... + 29911.

It is an arithmetic number, because the mean of its divisors is an integer number (56884303).

Almost surely, 2^422076421 is an apocalyptic number.

It is an amenable number.

422076421 is a deficient number, since it is larger than the sum of its proper divisors (32998003).

422076421 is a wasteful number, since it uses less digits than its factorization.

422076421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37911.

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 422076421 is about 20544.4985580082. The cubic root of 422076421 is about 750.1193416017.

The spelling of 422076421 in words is "four hundred twenty-two million, seventy-six thousand, four hundred twenty-one".