2443929 has 4 divisors (see below), whose sum is σ = 3258576. Its totient is φ = 1629284.

The previous prime is 2443927. The next prime is 2443933. The reversal of 2443929 is 9293442.

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.

It is a cyclic number.

It is not a de Polignac number, because 2443929 - 2¹ = 2443927 is a prime.

It is a D-number.

2443929 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2443929.

It is not an unprimeable number, because it can be changed into a prime (2443927) 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, 407319 + ... + 407324.

It is an arithmetic number, because the mean of its divisors is an integer number (814644).

2^2443929 is an apocalyptic number.

It is an amenable number.

2443929 is a deficient number, since it is larger than the sum of its proper divisors (814647).

2443929 is an equidigital number, since it uses as much as digits as its factorization.

2443929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 814646.

The product of its digits is 15552, while the sum is 33.

The square root of 2443929 is about 1563.3070715634. The cubic root of 2443929 is about 134.6985316822.

The spelling of 2443929 in words is "two million, four hundred forty-three thousand, nine hundred twenty-nine".