4122399 has 4 divisors (see below), whose sum is σ = 5496536. Its totient is φ = 2748264.

The previous prime is 4122343. The next prime is 4122401. The reversal of 4122399 is 9932214.

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

It is a de Polignac number, because none of the positive numbers 2^k-4122399 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4122329) 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, 687064 + ... + 687069.

It is an arithmetic number, because the mean of its divisors is an integer number (1374134).

Almost surely, 2^4122399 is an apocalyptic number.

4122399 is a deficient number, since it is larger than the sum of its proper divisors (1374137).

4122399 is a wasteful number, since it uses less digits than its factorization.

4122399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1374136.

The product of its digits is 3888, while the sum is 30.

The square root of 4122399 is about 2030.3691782531. The cubic root of 4122399 is about 160.3430011426.

The spelling of 4122399 in words is "four million, one hundred twenty-two thousand, three hundred ninety-nine".