7222438 has 8 divisors (see below), whose sum is σ = 10848600. Its totient is φ = 3606240.

The previous prime is 7222429. The next prime is 7222493. The reversal of 7222438 is 8342227.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×7222438² = 104327221327688, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 288 + ... + 3811.

It is an arithmetic number, because the mean of its divisors is an integer number (1356075).

Almost surely, 2^7222438 is an apocalyptic number.

7222438 is a deficient number, since it is larger than the sum of its proper divisors (3626162).

7222438 is a wasteful number, since it uses less digits than its factorization.

7222438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4982.

The product of its digits is 5376, while the sum is 28.

The square root of 7222438 is about 2687.4593950421. The cubic root of 7222438 is about 193.2982582690.

It can be divided in two parts, 722 and 2438, that added together give a triangular number (3160 = T₇₉).

The spelling of 7222438 in words is "seven million, two hundred twenty-two thousand, four hundred thirty-eight".