2861380 has 24 divisors (see below), whose sum is σ = 6088320. Its totient is φ = 1129440.

The previous prime is 2861377. The next prime is 2861387. The reversal of 2861380 is 831682.

It is not an unprimeable number, because it can be changed into a prime (2861387) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 675 + ... + 2485.

It is an arithmetic number, because the mean of its divisors is an integer number (253680).

2^2861380 is an apocalyptic number.

2861380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2861380 is an abundant number, since it is smaller than the sum of its proper divisors (3226940).

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

2861380 is a wasteful number, since it uses less digits than its factorization.

2861380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1899 (or 1897 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 2861380 is about 1691.5614088764. The cubic root of 2861380 is about 141.9684516305.

The spelling of 2861380 in words is "two million, eight hundred sixty-one thousand, three hundred eighty".