2239429 has 4 divisors (see below), whose sum is σ = 2255680. Its totient is φ = 2223180.

The previous prime is 2239417. The next prime is 2239453. The reversal of 2239429 is 9249322.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9249322 = 2 ⋅4624661.

It is a cyclic number.

It is not a de Polignac number, because 2239429 - 2⁷ = 2239301 is a prime.

It is a d-powerful number, because it can be written as 2¹³ + 2¹⁷ + 3⁷ + 9² + 4² + 2²¹ + 9³ .

It is a Duffinian number.

2239429 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2239429.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2239459) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7917 + ... + 8194.

It is an arithmetic number, because the mean of its divisors is an integer number (563920).

2^2239429 is an apocalyptic number.

It is an amenable number.

2239429 is a deficient number, since it is larger than the sum of its proper divisors (16251).

2239429 is a wasteful number, since it uses less digits than its factorization.

2239429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16250.

The product of its digits is 7776, while the sum is 31.

The square root of 2239429 is about 1496.4721848401. The cubic root of 2239429 is about 130.8315337314.

The spelling of 2239429 in words is "two million, two hundred thirty-nine thousand, four hundred twenty-nine".