7822442 has 4 divisors (see below), whose sum is σ = 11733666. Its totient is φ = 3911220.

The previous prime is 7822439. The next prime is 7822519. The reversal of 7822442 is 2442287.

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., 7789681 + 32761 = 2791^2 + 181^2 .

It is a super-2 number, since 2×7822442² = 122381197686728, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1955609 + ... + 1955612.

Almost surely, 2^7822442 is an apocalyptic number.

7822442 is a deficient number, since it is larger than the sum of its proper divisors (3911224).

7822442 is a wasteful number, since it uses less digits than its factorization.

7822442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3911223.

The product of its digits is 7168, while the sum is 29.

The square root of 7822442 is about 2796.8628854486. The cubic root of 7822442 is about 198.5092661702.

The spelling of 7822442 in words is "seven million, eight hundred twenty-two thousand, four hundred forty-two".