7057842 has 16 divisors (see below), whose sum is σ = 15399072. Its totient is φ = 2138720.

The previous prime is 7057811. The next prime is 7057871. The reversal of 7057842 is 2487507.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an Ulam number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 53403 + ... + 53534.

It is an arithmetic number, because the mean of its divisors is an integer number (962442).

Almost surely, 2^7057842 is an apocalyptic number.

7057842 is an abundant number, since it is smaller than the sum of its proper divisors (8341230).

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

7057842 is a wasteful number, since it uses less digits than its factorization.

7057842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106953.

The product of its (nonzero) digits is 15680, while the sum is 33.

The square root of 7057842 is about 2656.6599330739. The cubic root of 7057842 is about 191.8185677572.

The spelling of 7057842 in words is "seven million, fifty-seven thousand, eight hundred forty-two".