2819772 has 42 divisors (see below), whose sum is σ = 7406168. Its totient is φ = 938952.

The previous prime is 2819767. The next prime is 2819779. The reversal of 2819772 is 2779182.

2819772 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2819772² = 15902228263968, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2819779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 2433 + ... + 3399.

2^2819772 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 2819772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3703084).

2819772 is an abundant number, since it is smaller than the sum of its proper divisors (4586396).

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

2819772 is an equidigital number, since it uses as much as digits as its factorization.

2819772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 989 (or 972 counting only the distinct ones).

The product of its digits is 14112, while the sum is 36.

The square root of 2819772 is about 1679.2176749904. The cubic root of 2819772 is about 141.2769567681.

The spelling of 2819772 in words is "two million, eight hundred nineteen thousand, seven hundred seventy-two".