7157426 has 8 divisors (see below), whose sum is σ = 10750320. Its totient is φ = 3573988.

The previous prime is 7157417. The next prime is 7157429. The reversal of 7157426 is 6247517.

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

It is a junction number, because it is equal to n+sod(n) for n = 7157392 and 7157401.

It is not an unprimeable number, because it can be changed into a prime (7157429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5 + ... + 3783.

It is an arithmetic number, because the mean of its divisors is an integer number (1343790).

Almost surely, 2^7157426 is an apocalyptic number.

7157426 is a deficient number, since it is larger than the sum of its proper divisors (3592894).

7157426 is a wasteful number, since it uses less digits than its factorization.

7157426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4728.

The product of its digits is 11760, while the sum is 32.

The square root of 7157426 is about 2675.3366143347. The cubic root of 7157426 is about 192.7165247871.

Subtracting from 7157426 its reverse (6247517), we obtain a palindrome (909909).

The spelling of 7157426 in words is "seven million, one hundred fifty-seven thousand, four hundred twenty-six".