2293421 has 4 divisors (see below), whose sum is σ = 2469852. Its totient is φ = 2116992.

The previous prime is 2293397. The next prime is 2293427. The reversal of 2293421 is 1243922.

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 302500 + 1990921 = 550^2 + 1411^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2293421 is a prime.

It is a d-powerful number, because it can be written as 2¹¹ + 2¹⁷ + 9⁵ + 3 + 4⁶ + 2²¹ + 1 .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2293427) 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, 88196 + ... + 88221.

It is an arithmetic number, because the mean of its divisors is an integer number (617463).

2^2293421 is an apocalyptic number.

It is an amenable number.

2293421 is a deficient number, since it is larger than the sum of its proper divisors (176431).

2293421 is a wasteful number, since it uses less digits than its factorization.

2293421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176430.

The product of its digits is 864, while the sum is 23.

The square root of 2293421 is about 1514.4045034270. The cubic root of 2293421 is about 131.8746322699.

The spelling of 2293421 in words is "two million, two hundred ninety-three thousand, four hundred twenty-one".