7105640 has 32 divisors (see below), whose sum is σ = 16065000. Its totient is φ = 2828544.

The previous prime is 7105627. The next prime is 7105673. The reversal of 7105640 is 465017.

It can be written as a sum of positive squares in 4 ways, for example, as 6895876 + 209764 = 2626^2 + 458^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13706 + ... + 14214.

Almost surely, 2^7105640 is an apocalyptic number.

It is an amenable number.

7105640 is an abundant number, since it is smaller than the sum of its proper divisors (8959360).

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

7105640 is a wasteful number, since it uses less digits than its factorization.

7105640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 869 (or 865 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 7105640 is about 2665.6406359448. The cubic root of 7105640 is about 192.2506131317.

The spelling of 7105640 in words is "seven million, one hundred five thousand, six hundred forty".