7445426 has 4 divisors (see below), whose sum is σ = 11168142. Its totient is φ = 3722712.

The previous prime is 7445393. The next prime is 7445437. The reversal of 7445426 is 6245447.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6245447 = 13 ⋅480419.

It can be written as a sum of positive squares in only one way, i.e., 5527201 + 1918225 = 2351^2 + 1385^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 7445392 and 7445401.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1861355 + ... + 1861358.

Almost surely, 2^7445426 is an apocalyptic number.

7445426 is a deficient number, since it is larger than the sum of its proper divisors (3722716).

7445426 is a wasteful number, since it uses less digits than its factorization.

7445426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3722715.

The product of its digits is 26880, while the sum is 32.

The square root of 7445426 is about 2728.6307921740. The cubic root of 7445426 is about 195.2674480536.

The spelling of 7445426 in words is "seven million, four hundred forty-five thousand, four hundred twenty-six".