2422729 has 4 divisors (see below), whose sum is σ = 2435476. Its totient is φ = 2409984.

The previous prime is 2422727. The next prime is 2422741. The reversal of 2422729 is 9272242.

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 1750329 + 672400 = 1323^2 + 820^2 .

It is a cyclic number.

It is not a de Polignac number, because 2422729 - 2¹ = 2422727 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2422697 and 2422706.

It is not an unprimeable number, because it can be changed into a prime (2422727) 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, 6084 + ... + 6469.

It is an arithmetic number, because the mean of its divisors is an integer number (608869).

2^2422729 is an apocalyptic number.

It is an amenable number.

2422729 is a deficient number, since it is larger than the sum of its proper divisors (12747).

2422729 is a wasteful number, since it uses less digits than its factorization.

2422729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12746.

The product of its digits is 4032, while the sum is 28.

The square root of 2422729 is about 1556.5118052877. The cubic root of 2422729 is about 134.3079166872.

The spelling of 2422729 in words is "two million, four hundred twenty-two thousand, seven hundred twenty-nine".