2291429 has 4 divisors (see below), whose sum is σ = 2618784. Its totient is φ = 1964076.

The previous prime is 2291417. The next prime is 2291437. The reversal of 2291429 is 9241922.

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: 9241922 = 2 ⋅4620961.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2291429 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2291459) 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, 163667 + ... + 163680.

It is an arithmetic number, because the mean of its divisors is an integer number (654696).

2^2291429 is an apocalyptic number.

It is an amenable number.

2291429 is a deficient number, since it is larger than the sum of its proper divisors (327355).

2291429 is an equidigital number, since it uses as much as digits as its factorization.

2291429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327354.

The product of its digits is 2592, while the sum is 29.

The square root of 2291429 is about 1513.7466762969. The cubic root of 2291429 is about 131.8364403635.

The spelling of 2291429 in words is "two million, two hundred ninety-one thousand, four hundred twenty-nine".