7032640 has 28 divisors (see below), whose sum is σ = 16747236. Its totient is φ = 2812928.

The previous prime is 7032617. The next prime is 7032647. The reversal of 7032640 is 462307.

It can be written as a sum of positive squares in 2 ways, for example, as 2903616 + 4129024 = 1704^2 + 2032^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7032647) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 10669 + ... + 11308.

Almost surely, 2^7032640 is an apocalyptic number.

It is an amenable number.

7032640 is an abundant number, since it is smaller than the sum of its proper divisors (9714596).

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

7032640 is a wasteful number, since it uses less digits than its factorization.

7032640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21994 (or 21984 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 7032640 is about 2651.9125174108. The cubic root of 7032640 is about 191.5899815049.

Adding to 7032640 its reverse (462307), we get a palindrome (7494947).

The spelling of 7032640 in words is "seven million, thirty-two thousand, six hundred forty".