2399229 has 12 divisors (see below), whose sum is σ = 3960736. Its totient is φ = 1370952.

The previous prime is 2399213. The next prime is 2399231. The reversal of 2399229 is 9229932.

It is not a de Polignac number, because 2399229 - 2⁴ = 2399213 is a prime.

It is a Duffinian number.

2399229 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2399193 and 2399202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2399249) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18979 + ... + 19104.

2^2399229 is an apocalyptic number.

It is an amenable number.

2399229 is a deficient number, since it is larger than the sum of its proper divisors (1561507).

2399229 is a wasteful number, since it uses less digits than its factorization.

2399229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38096 (or 38093 counting only the distinct ones).

The product of its digits is 17496, while the sum is 36.

The square root of 2399229 is about 1548.9444793149. The cubic root of 2399229 is about 133.8722514586.

It can be divided in two parts, 2399 and 229, that added together give a triangular number (2628 = T₇₂).

The spelling of 2399229 in words is "two million, three hundred ninety-nine thousand, two hundred twenty-nine".