422035421 has 4 divisors (see below), whose sum is σ = 446861052. Its totient is φ = 397209792.

The previous prime is 422035399. The next prime is 422035433. The reversal of 422035421 is 124530224.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 335805625 + 86229796 = 18325^2 + 9286^2 .

It is a cyclic number.

It is not a de Polignac number, because 422035421 - 2¹⁸ = 421773277 is a prime.

It is a super-2 number, since 2×422035421² = 356227793157294482, 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 (422035921) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12412790 + ... + 12412823.

It is an arithmetic number, because the mean of its divisors is an integer number (111715263).

Almost surely, 2^422035421 is an apocalyptic number.

It is an amenable number.

422035421 is a deficient number, since it is larger than the sum of its proper divisors (24825631).

422035421 is a wasteful number, since it uses less digits than its factorization.

422035421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24825630.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 422035421 is about 20543.5006997347. The cubic root of 422035421 is about 750.0950522492.

Adding to 422035421 its reverse (124530224), we get a palindrome (546565645).

The spelling of 422035421 in words is "four hundred twenty-two million, thirty-five thousand, four hundred twenty-one".