2649870 has 24 divisors (see below), whose sum is σ = 6889896. Its totient is φ = 706608.

The previous prime is 2649869. The next prime is 2649877. The reversal of 2649870 is 789462.

2649870 is a `hidden beast` number, since 2 + 649 + 8 + 7 + 0 = 666.

2649870 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2649870² = 14043622033800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2649877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14632 + ... + 14811.

It is an arithmetic number, because the mean of its divisors is an integer number (287079).

2^2649870 is an apocalyptic number.

2649870 is an abundant number, since it is smaller than the sum of its proper divisors (4240026).

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

2649870 is a wasteful number, since it uses less digits than its factorization.

2649870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29456 (or 29453 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 2649870 is about 1627.8421299377. The cubic root of 2649870 is about 138.3804874649.

The spelling of 2649870 in words is "two million, six hundred forty-nine thousand, eight hundred seventy".