2192399 has 6 divisors (see below), whose sum is σ = 2409960. Its totient is φ = 1992980.

The previous prime is 2192387. The next prime is 2192417. The reversal of 2192399 is 9932912.

It is not a de Polignac number, because 2192399 - 2⁸ = 2192143 is a prime.

It is a super-2 number, since 2×2192399² = 9613226750402, which contains 22 as substring.

It is a d-powerful number, because it can be written as 2⁹ + 1 + 9⁴ + 2⁹ + 3¹³ + 9⁵ + 9⁶ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2192339) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8939 + ... + 9180.

It is an arithmetic number, because the mean of its divisors is an integer number (401660).

2^2192399 is an apocalyptic number.

2192399 is a deficient number, since it is larger than the sum of its proper divisors (217561).

2192399 is a wasteful number, since it uses less digits than its factorization.

2192399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18141 (or 18130 counting only the distinct ones).

The product of its digits is 8748, while the sum is 35.

The square root of 2192399 is about 1480.6751838266. The cubic root of 2192399 is about 129.9091870695.

It can be divided in two parts, 21923 and 99, that added together give a palindrome (22022).

The spelling of 2192399 in words is "two million, one hundred ninety-two thousand, three hundred ninety-nine".