2077980 has 48 divisors (see below), whose sum is σ = 5927040. Its totient is φ = 543808.

The previous prime is 2077969. The next prime is 2077987. The reversal of 2077980 is 897702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2077987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3247 + ... + 3833.

It is an arithmetic number, because the mean of its divisors is an integer number (123480).

2^2077980 is an apocalyptic number.

2077980 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 2077980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2963520).

2077980 is an abundant number, since it is smaller than the sum of its proper divisors (3849060).

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

2077980 is a wasteful number, since it uses less digits than its factorization.

2077980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658 (or 656 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 33.

The square root of 2077980 is about 1441.5200310783. The cubic root of 2077980 is about 127.6087499691.

The spelling of 2077980 in words is "two million, seventy-seven thousand, nine hundred eighty".