2243724129 has 24 divisors (see below), whose sum is σ = 3384588480. Its totient is φ = 1429620192.

The previous prime is 2243724121. The next prime is 2243724137. The reversal of 2243724129 is 9214273422.

It is a happy number.

2243724129 is a `hidden beast` number, since 224 + 372 + 41 + 29 = 666.

It is an interprime number because it is at equal distance from previous prime (2243724121) and next prime (2243724137).

It is not a de Polignac number, because 2243724129 - 2³ = 2243724121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2243724093 and 2243724102.

It is not an unprimeable number, because it can be changed into a prime (2243724121) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 303327 + ... + 310635.

It is an arithmetic number, because the mean of its divisors is an integer number (141024520).

Almost surely, 2^2243724129 is an apocalyptic number.

It is an amenable number.

2243724129 is a deficient number, since it is larger than the sum of its proper divisors (1140864351).

2243724129 is a wasteful number, since it uses less digits than its factorization.

2243724129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8821 (or 8818 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 2243724129 is about 47367.9652191225. The cubic root of 2243724129 is about 1309.1512340822.

The spelling of 2243724129 in words is "two billion, two hundred forty-three million, seven hundred twenty-four thousand, one hundred twenty-nine".