2291430 has 32 divisors (see below), whose sum is σ = 5824224. Its totient is φ = 574976.

The previous prime is 2291417. The next prime is 2291437. The reversal of 2291430 is 341922.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2291397 and 2291406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2291437) 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 15 ways as a sum of consecutive naturals, for example, 1737 + ... + 2756.

It is an arithmetic number, because the mean of its divisors is an integer number (182007).

2^2291430 is an apocalyptic number.

2291430 is an abundant number, since it is smaller than the sum of its proper divisors (3532794).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2291430 is a wasteful number, since it uses less digits than its factorization.

2291430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4520.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 2291430 is about 1513.7470066032. The cubic root of 2291430 is about 131.8364595417.

The spelling of 2291430 in words is "two million, two hundred ninety-one thousand, four hundred thirty".