2819964 has 48 divisors (see below), whose sum is σ = 7660800. Its totient is φ = 790656.

The previous prime is 2819959. The next prime is 2819981. The reversal of 2819964 is 4699182.

2819964 is digitally balanced in base 8, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2819964² = 15904393922592, which contains 22 as substring.

2819964 is strictly pandigital in base 8.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4672 + ... + 5240.

It is an arithmetic number, because the mean of its divisors is an integer number (159600).

2^2819964 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2819964, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3830400).

2819964 is an abundant number, since it is smaller than the sum of its proper divisors (4840836).

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

2819964 is a wasteful number, since it uses less digits than its factorization.

2819964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642 (or 640 counting only the distinct ones).

The product of its digits is 31104, while the sum is 39.

The square root of 2819964 is about 1679.2748434964. The cubic root of 2819964 is about 141.2801632401.

The spelling of 2819964 in words is "two million, eight hundred nineteen thousand, nine hundred sixty-four".