2274729 has 4 divisors (see below), whose sum is σ = 3032976. Its totient is φ = 1516484.

The previous prime is 2274709. The next prime is 2274733. The reversal of 2274729 is 9274722.

2274729 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2274729 - 2⁸ = 2274473 is a prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 2³ + 2⁹ + 7³ + 4² + 7⁶ + 2²¹ + 9⁵ .

It is a D-number.

It is a self number, because there is not a number n which added to its sum of digits gives 2274729.

It is not an unprimeable number, because it can be changed into a prime (2274709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 379119 + ... + 379124.

It is an arithmetic number, because the mean of its divisors is an integer number (758244).

2^2274729 is an apocalyptic number.

It is an amenable number.

2274729 is a deficient number, since it is larger than the sum of its proper divisors (758247).

2274729 is an equidigital number, since it uses as much as digits as its factorization.

2274729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 758246.

The product of its digits is 14112, while the sum is 33.

The square root of 2274729 is about 1508.2204745991. The cubic root of 2274729 is about 131.5153832235.

Multiplying 2274729 by its sum of digits (33), we get a palindrome (75066057).

It can be divided in two parts, 2274 and 729, that added together give a palindrome (3003).

The spelling of 2274729 in words is "two million, two hundred seventy-four thousand, seven hundred twenty-nine".