2640748 has 12 divisors (see below), whose sum is σ = 5041512. Its totient is φ = 1200320.

The previous prime is 2640739. The next prime is 2640749. The reversal of 2640748 is 8470462.

It is not an unprimeable number, because it can be changed into a prime (2640749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29965 + ... + 30052.

It is an arithmetic number, because the mean of its divisors is an integer number (420126).

2^2640748 is an apocalyptic number.

It is an amenable number.

2640748 is a deficient number, since it is larger than the sum of its proper divisors (2400764).

2640748 is a wasteful number, since it uses less digits than its factorization.

2640748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60032 (or 60030 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 2640748 is about 1625.0378457131. The cubic root of 2640748 is about 138.2215163893.

The spelling of 2640748 in words is "two million, six hundred forty thousand, seven hundred forty-eight".