2540650 has 72 divisors (see below), whose sum is σ = 5915916. Its totient is φ = 806400.

The previous prime is 2540641. The next prime is 2540663. The reversal of 2540650 is 560452.

It can be written as a sum of positive squares in 6 ways, for example, as 561001 + 1979649 = 749^2 + 1407^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 41620 + ... + 41680.

2^2540650 is an apocalyptic number.

2540650 is an abundant number, since it is smaller than the sum of its proper divisors (3375266).

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

2540650 is a wasteful number, since it uses less digits than its factorization.

2540650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104 (or 92 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 2540650 is about 1593.9416551430. The cubic root of 2540650 is about 136.4525366430.

The spelling of 2540650 in words is "two million, five hundred forty thousand, six hundred fifty".