2399124 has 60 divisors (see below), whose sum is σ = 6930784. Its totient is φ = 632736.

The previous prime is 2399119. The next prime is 2399129. The reversal of 2399124 is 4219932.

It is an interprime number because it is at equal distance from previous prime (2399119) and next prime (2399129).

It is a super-3 number, since 3×2399124³ = 41426604733304935872, which contains 333 as substring.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a nialpdrome in base 13.

It is a zygodrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 2399091 and 2399100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2399129) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 184542 + ... + 184554.

2^2399124 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 2399124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3465392).

2399124 is an abundant number, since it is smaller than the sum of its proper divisors (4531660).

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

2399124 is an equidigital number, since it uses as much as digits as its factorization.

2399124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66 (or 25 counting only the distinct ones).

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

The square root of 2399124 is about 1548.9105848951. The cubic root of 2399124 is about 133.8702984990.

The spelling of 2399124 in words is "two million, three hundred ninety-nine thousand, one hundred twenty-four".