2665020 has 24 divisors (see below), whose sum is σ = 7462224. Its totient is φ = 710656.

The previous prime is 2665009. The next prime is 2665021. The reversal of 2665020 is 205662.

It is a nialpdrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2665021) 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, 22149 + ... + 22268.

It is an arithmetic number, because the mean of its divisors is an integer number (310926).

2^2665020 is an apocalyptic number.

2665020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2665020 is an abundant number, since it is smaller than the sum of its proper divisors (4797204).

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

2665020 is a wasteful number, since it uses less digits than its factorization.

2665020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44429 (or 44427 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 2665020 is about 1632.4888973589. The cubic root of 2665020 is about 138.6437056205.

The spelling of 2665020 in words is "two million, six hundred sixty-five thousand, twenty".