7257842 has 8 divisors (see below), whose sum is σ = 11049456. Its totient is φ = 3574692.

The previous prime is 7257839. The next prime is 7257847. The reversal of 7257842 is 2487527.

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

It is not an unprimeable number, because it can be changed into a prime (7257847) 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, 26948 + ... + 27215.

It is an arithmetic number, because the mean of its divisors is an integer number (1381182).

Almost surely, 2^7257842 is an apocalyptic number.

7257842 is a deficient number, since it is larger than the sum of its proper divisors (3791614).

7257842 is a wasteful number, since it uses less digits than its factorization.

7257842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54232.

The product of its digits is 31360, while the sum is 35.

The square root of 7257842 is about 2694.0382328393. The cubic root of 7257842 is about 193.6135894486.

The spelling of 7257842 in words is "seven million, two hundred fifty-seven thousand, eight hundred forty-two".