2783380 has 12 divisors (see below), whose sum is σ = 5845140. Its totient is φ = 1113344.

The previous prime is 2783377. The next prime is 2783411. The reversal of 2783380 is 833872.

It can be written as a sum of positive squares in 2 ways, for example, as 1056784 + 1726596 = 1028^2 + 1314^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69565 + ... + 69604.

It is an arithmetic number, because the mean of its divisors is an integer number (487095).

2^2783380 is an apocalyptic number.

2783380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2783380 is an abundant number, since it is smaller than the sum of its proper divisors (3061760).

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

2783380 is a wasteful number, since it uses less digits than its factorization.

2783380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139178 (or 139176 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 2783380 is about 1668.3464867946. The cubic root of 2783380 is about 140.6665493686. Note that the first 3 decimals are identical.

The spelling of 2783380 in words is "two million, seven hundred eighty-three thousand, three hundred eighty".