7669540 has 24 divisors (see below), whose sum is σ = 16954560. Its totient is φ = 2906208.

The previous prime is 7669517. The next prime is 7669547. The reversal of 7669540 is 459667.

It is a self number, because there is not a number n which added to its sum of digits gives 7669540.

It is not an unprimeable number, because it can be changed into a prime (7669547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9712 + ... + 10471.

It is an arithmetic number, because the mean of its divisors is an integer number (706440).

Almost surely, 2^7669540 is an apocalyptic number.

It is an amenable number.

7669540 is an abundant number, since it is smaller than the sum of its proper divisors (9285020).

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

7669540 is a wasteful number, since it uses less digits than its factorization.

7669540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20211 (or 20209 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 7669540 is about 2769.3934353934. The cubic root of 7669540 is about 197.2073537984.

The spelling of 7669540 in words is "seven million, six hundred sixty-nine thousand, five hundred forty".