422261401 has 3 divisors (see below), whose sum is σ = 422281951. Its totient is φ = 422240852.

The previous prime is 422261387. The next prime is 422261461. The reversal of 422261401 is 104162224.

It is a happy number.

The square root of 422261401 is 20549.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 414081801 + 8179600 = 20349^2 + 2860^2 .

It is not a de Polignac number, because 422261401 - 2¹⁷ = 422130329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (422261461) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 10275 + ... + 30823.

Almost surely, 2^422261401 is an apocalyptic number.

422261401 is the 20549-th square number.

422261401 is the 10275-th centered octagonal number.

It is an amenable number.

422261401 is a deficient number, since it is larger than the sum of its proper divisors (20550).

422261401 is an frugal number, since it uses more digits than its factorization.

422261401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41098 (or 20549 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The cubic root of 422261401 is about 750.2289084978.

The spelling of 422261401 in words is "four hundred twenty-two million, two hundred sixty-one thousand, four hundred one".