7445842 has 4 divisors (see below), whose sum is σ = 11168766. Its totient is φ = 3722920.

The previous prime is 7445839. The next prime is 7445857. The reversal of 7445842 is 2485447.

It is a happy number.

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., 4626801 + 2819041 = 2151^2 + 1679^2 .

It is a junction number, because it is equal to n+sod(n) for n = 7445798 and 7445807.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1861459 + ... + 1861462.

Almost surely, 2^7445842 is an apocalyptic number.

7445842 is a deficient number, since it is larger than the sum of its proper divisors (3722924).

7445842 is a wasteful number, since it uses less digits than its factorization.

7445842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3722923.

The product of its digits is 35840, while the sum is 34.

The square root of 7445842 is about 2728.7070198173. The cubic root of 7445842 is about 195.2710847269.

The spelling of 7445842 in words is "seven million, four hundred forty-five thousand, eight hundred forty-two".