2040780 has 96 divisors (see below), whose sum is σ = 6741504. Its totient is φ = 451584.

The previous prime is 2040769. The next prime is 2040781. The reversal of 2040780 is 870402.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (2040781) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18004 + ... + 18116.

It is an arithmetic number, because the mean of its divisors is an integer number (70224).

2^2040780 is an apocalyptic number.

2040780 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 2040780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3370752).

2040780 is an abundant number, since it is smaller than the sum of its proper divisors (4700724).

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

2040780 is a wasteful number, since it uses less digits than its factorization.

2040780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175 (or 173 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 2040780 is about 1428.5587142291. The cubic root of 2040780 is about 126.8426762116.

The spelling of 2040780 in words is "two million, forty thousand, seven hundred eighty".