2640332 has 24 divisors (see below), whose sum is σ = 4838400. Its totient is φ = 1259280.

The previous prime is 2640317. The next prime is 2640343. The reversal of 2640332 is 2330462.

It is a d-powerful number, because it can be written as 2¹³ + 6⁴ + 4³ + 0 + 3⁷ + 3¹² + 2²¹ .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13169 + ... + 13367.

It is an arithmetic number, because the mean of its divisors is an integer number (201600).

2^2640332 is an apocalyptic number.

It is an amenable number.

2640332 is a deficient number, since it is larger than the sum of its proper divisors (2198068).

2640332 is a wasteful number, since it uses less digits than its factorization.

2640332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341 (or 339 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 2640332 is about 1624.9098436529. The cubic root of 2640332 is about 138.2142579445.

Adding to 2640332 its reverse (2330462), we get a palindrome (4970794).

The spelling of 2640332 in words is "two million, six hundred forty thousand, three hundred thirty-two".