2665290 has 16 divisors (see below), whose sum is σ = 6396768. Its totient is φ = 710736.

The previous prime is 2665261. The next prime is 2665291. The reversal of 2665290 is 925662.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 88843 = 2665290 / (2 + 6 + 6 + 5 + 2 + 9 + 0).

It is not an unprimeable number, because it can be changed into a prime (2665291) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44392 + ... + 44451.

It is an arithmetic number, because the mean of its divisors is an integer number (399798).

2^2665290 is an apocalyptic number.

2665290 is an abundant number, since it is smaller than the sum of its proper divisors (3731478).

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

2665290 is a wasteful number, since it uses less digits than its factorization.

2665290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88853.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 2665290 is about 1632.5715910795. The cubic root of 2665290 is about 138.6483875786.

The spelling of 2665290 in words is "two million, six hundred sixty-five thousand, two hundred ninety".