4202861 has 8 divisors (see below), whose sum is σ = 4555320. Its totient is φ = 3877536.

The previous prime is 4202851. The next prime is 4202897. The reversal of 4202861 is 1682024.

It can be written as a sum of positive squares in 4 ways, for example, as 570025 + 3632836 = 755^2 + 1906^2 .

It is not a de Polignac number, because 4202861 - 2⁶ = 4202797 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4202851) 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, 1241 + ... + 3153.

It is an arithmetic number, because the mean of its divisors is an integer number (569415).

Almost surely, 2^4202861 is an apocalyptic number.

It is an amenable number.

4202861 is a deficient number, since it is larger than the sum of its proper divisors (352459).

4202861 is an equidigital number, since it uses as much as digits as its factorization.

4202861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1952 (or 1926 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 4202861 is about 2050.0880468897. The cubic root of 4202861 is about 161.3794913614.

Adding to 4202861 its reverse (1682024), we get a palindrome (5884885).

The spelling of 4202861 in words is "four million, two hundred two thousand, eight hundred sixty-one".