4122872 has 32 divisors (see below), whose sum is σ = 8618400. Its totient is φ = 1835904.

The previous prime is 4122863. The next prime is 4122893. The reversal of 4122872 is 2782214.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2333 + ... + 3699.

It is an arithmetic number, because the mean of its divisors is an integer number (269325).

Almost surely, 2^4122872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4122872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4309200).

4122872 is an abundant number, since it is smaller than the sum of its proper divisors (4495528).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4122872 is a wasteful number, since it uses less digits than its factorization.

4122872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1415 (or 1411 counting only the distinct ones).

The product of its digits is 1792, while the sum is 26.

The square root of 4122872 is about 2030.4856561916. The cubic root of 4122872 is about 160.3491334407.

It can be divided in two parts, 4122 and 872, that added together give a palindrome (4994).

The spelling of 4122872 in words is "four million, one hundred twenty-two thousand, eight hundred seventy-two".