7142798 has 8 divisors (see below), whose sum is σ = 11538408. Its totient is φ = 3296664.

The previous prime is 7142791. The next prime is 7142809. The reversal of 7142798 is 8972417.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7142791) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137336 + ... + 137387.

It is an arithmetic number, because the mean of its divisors is an integer number (1442301).

Almost surely, 2^7142798 is an apocalyptic number.

7142798 is a deficient number, since it is larger than the sum of its proper divisors (4395610).

7142798 is a wasteful number, since it uses less digits than its factorization.

7142798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274738.

The product of its digits is 28224, while the sum is 38.

The square root of 7142798 is about 2672.6013544859. The cubic root of 7142798 is about 192.5851470175.

The spelling of 7142798 in words is "seven million, one hundred forty-two thousand, seven hundred ninety-eight".