2640550 has 24 divisors (see below), whose sum is σ = 5359032. Its totient is φ = 960000.

The previous prime is 2640527. The next prime is 2640551. The reversal of 2640550 is 550462.

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2640551) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1851 + ... + 2950.

It is an arithmetic number, because the mean of its divisors is an integer number (223293).

2^2640550 is an apocalyptic number.

2640550 is an abundant number, since it is smaller than the sum of its proper divisors (2718482).

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

2640550 is a wasteful number, since it uses less digits than its factorization.

2640550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4824 (or 4819 counting only the distinct ones).

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

The square root of 2640550 is about 1624.9769229131. The cubic root of 2640550 is about 138.2180617438.

The spelling of 2640550 in words is "two million, six hundred forty thousand, five hundred fifty".