422001861 has 16 divisors (see below), whose sum is σ = 599629824. Its totient is φ = 263375024.

The previous prime is 422001817. The next prime is 422001883. The reversal of 422001861 is 168100224.

It is not a de Polignac number, because 422001861 - 2¹⁴ = 421985477 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422005861) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61821 + ... + 68306.

It is an arithmetic number, because the mean of its divisors is an integer number (37476864).

Almost surely, 2^422001861 is an apocalyptic number.

It is an amenable number.

422001861 is a deficient number, since it is larger than the sum of its proper divisors (177627963).

422001861 is a wasteful number, since it uses less digits than its factorization.

422001861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130200.

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 422001861 is about 20542.6838801555. The cubic root of 422001861 is about 750.0751693547.

The spelling of 422001861 in words is "four hundred twenty-two million, one thousand, eight hundred sixty-one".