2783960 has 32 divisors (see below), whose sum is σ = 6350400. Its totient is φ = 1098240.

The previous prime is 2783959. The next prime is 2783999. The reversal of 2783960 is 693872.

2783960 = T₂₂₅ + T₂₂₆ + ... + T₃₀₃.

It is a self number, because there is not a number n which added to its sum of digits gives 2783960.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2720 + ... + 3600.

It is an arithmetic number, because the mean of its divisors is an integer number (198450).

2^2783960 is an apocalyptic number.

2783960 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 2783960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3175200).

2783960 is an abundant number, since it is smaller than the sum of its proper divisors (3566440).

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

2783960 is a wasteful number, since it uses less digits than its factorization.

2783960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 971 (or 967 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 2783960 is about 1668.5203025435. The cubic root of 2783960 is about 140.6763193763.

The spelling of 2783960 in words is "two million, seven hundred eighty-three thousand, nine hundred sixty".