2889780 has 24 divisors (see below), whose sum is σ = 8091552. Its totient is φ = 770592.

The previous prime is 2889769. The next prime is 2889781. The reversal of 2889780 is 879882.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2889781) 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, 24022 + ... + 24141.

It is an arithmetic number, because the mean of its divisors is an integer number (337148).

2^2889780 is an apocalyptic number.

2889780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2889780 is an abundant number, since it is smaller than the sum of its proper divisors (5201772).

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

2889780 is a wasteful number, since it uses less digits than its factorization.

2889780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48175 (or 48173 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 42.

The square root of 2889780 is about 1699.9352928862. The cubic root of 2889780 is about 142.4365984497.

The spelling of 2889780 in words is "two million, eight hundred eighty-nine thousand, seven hundred eighty".