2291426 has 4 divisors (see below), whose sum is σ = 3437142. Its totient is φ = 1145712.

The previous prime is 2291417. The next prime is 2291437. The reversal of 2291426 is 6241922.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2088025 + 203401 = 1445^2 + 451^2 .

It is a super-2 number, since 2×2291426² = 10501266226952, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2291395 and 2291404.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572855 + ... + 572858.

2^2291426 is an apocalyptic number.

2291426 is a deficient number, since it is larger than the sum of its proper divisors (1145716).

2291426 is a wasteful number, since it uses less digits than its factorization.

2291426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1145715.

The product of its digits is 1728, while the sum is 26.

The square root of 2291426 is about 1513.7456853778. The cubic root of 2291426 is about 131.8363828289.

The spelling of 2291426 in words is "two million, two hundred ninety-one thousand, four hundred twenty-six".