2073780 has 72 divisors (see below), whose sum is σ = 6466824. Its totient is φ = 537600.

The previous prime is 2073719. The next prime is 2073787. The reversal of 2073780 is 873702.

It can be written as a sum of positive squares in 4 ways, for example, as 34596 + 2039184 = 186^2 + 1428^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2073787) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7240 + ... + 7520.

It is an arithmetic number, because the mean of its divisors is an integer number (89817).

2^2073780 is an apocalyptic number.

2073780 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 2073780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3233412).

2073780 is an abundant number, since it is smaller than the sum of its proper divisors (4393044).

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

2073780 is a wasteful number, since it uses less digits than its factorization.

2073780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337 (or 332 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 2073780 is about 1440.0624986437. The cubic root of 2073780 is about 127.5227179819.

The spelling of 2073780 in words is "two million, seventy-three thousand, seven hundred eighty".