2989980 has 144 divisors (see below), whose sum is σ = 10916640. Its totient is φ = 677376.

The previous prime is 2989963. The next prime is 2989997. The reversal of 2989980 is 899892.

It is an interprime number because it is at equal distance from previous prime (2989963) and next prime (2989997).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 26404 + ... + 26516.

It is an arithmetic number, because the mean of its divisors is an integer number (75810).

2^2989980 is an apocalyptic number.

2989980 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 2989980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5458320).

2989980 is an abundant number, since it is smaller than the sum of its proper divisors (7926660).

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

2989980 is a wasteful number, since it uses less digits than its factorization.

2989980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145 (or 130 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 45.

The square root of 2989980 is about 1729.1558634201. The cubic root of 2989980 is about 144.0642074777.

It can be divided in two parts, 2989 and 980, that added together give a square (3969 = 63²).

The spelling of 2989980 in words is "two million, nine hundred eighty-nine thousand, nine hundred eighty".