2640532 has 12 divisors (see below), whose sum is σ = 4635540. Its totient is φ = 1316096.

The previous prime is 2640527. The next prime is 2640551. The reversal of 2640532 is 2350462.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1726596 + 913936 = 1314^2 + 956^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 708 + ... + 2404.

It is an arithmetic number, because the mean of its divisors is an integer number (386295).

2^2640532 is an apocalyptic number.

It is an amenable number.

2640532 is a deficient number, since it is larger than the sum of its proper divisors (1995008).

2640532 is a wasteful number, since it uses less digits than its factorization.

2640532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2090 (or 2088 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 2640532 is about 1624.9713843634. The cubic root of 2640532 is about 138.2177476766.

Adding to 2640532 its reverse (2350462), we get a palindrome (4990994).

The spelling of 2640532 in words is "two million, six hundred forty thousand, five hundred thirty-two".