2400229 has 4 divisors (see below), whose sum is σ = 2584876. Its totient is φ = 2215584.

The previous prime is 2400221. The next prime is 2400253. The reversal of 2400229 is 9220042.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1404225 + 996004 = 1185^2 + 998^2 .

It is a cyclic number.

It is not a de Polignac number, because 2400229 - 2³ = 2400221 is a prime.

It is a super-2 number, since 2×2400229² = 11522198504882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2400221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92304 + ... + 92329.

It is an arithmetic number, because the mean of its divisors is an integer number (646219).

2^2400229 is an apocalyptic number.

It is an amenable number.

2400229 is a deficient number, since it is larger than the sum of its proper divisors (184647).

2400229 is a wasteful number, since it uses less digits than its factorization.

2400229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184646.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 2400229 is about 1549.2672461522. The cubic root of 2400229 is about 133.8908482184.

The spelling of 2400229 in words is "two million, four hundred thousand, two hundred twenty-nine".