2669720 has 32 divisors (see below), whose sum is σ = 6203520. Its totient is φ = 1032960.

The previous prime is 2669717. The next prime is 2669729. The reversal of 2669720 is 279662.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2669729) 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, 164 + ... + 2316.

It is an arithmetic number, because the mean of its divisors is an integer number (193860).

2^2669720 is an apocalyptic number.

2669720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2669720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3101760).

2669720 is an abundant number, since it is smaller than the sum of its proper divisors (3533800).

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

2669720 is a wasteful number, since it uses less digits than its factorization.

2669720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2195 (or 2191 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 2669720 is about 1633.9277829819. The cubic root of 2669720 is about 138.7251612599.

The spelling of 2669720 in words is "two million, six hundred sixty-nine thousand, seven hundred twenty".