7142238 has 24 divisors (see below), whose sum is σ = 15526368. Its totient is φ = 2372832.

The previous prime is 7142209. The next prime is 7142263. The reversal of 7142238 is 8322417.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7906 + ... + 8762.

It is an arithmetic number, because the mean of its divisors is an integer number (646932).

Almost surely, 2^7142238 is an apocalyptic number.

7142238 is an abundant number, since it is smaller than the sum of its proper divisors (8384130).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7142238 is a wasteful number, since it uses less digits than its factorization.

7142238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1328 (or 1325 counting only the distinct ones).

The product of its digits is 2688, while the sum is 27.

The square root of 7142238 is about 2672.4965855918. The cubic root of 7142238 is about 192.5801139524.

The spelling of 7142238 in words is "seven million, one hundred forty-two thousand, two hundred thirty-eight".