2788444 has 6 divisors (see below), whose sum is σ = 4879784. Its totient is φ = 1394220.

The previous prime is 2788439. The next prime is 2788447. The reversal of 2788444 is 4448872.

It is a super-2 number, since 2×2788444² = 15550839882272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2788447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 348552 + ... + 348559.

2^2788444 is an apocalyptic number.

It is an amenable number.

2788444 is a deficient number, since it is larger than the sum of its proper divisors (2091340).

2788444 is a wasteful number, since it uses less digits than its factorization.

2788444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 697115 (or 697113 counting only the distinct ones).

The product of its digits is 57344, while the sum is 37.

The square root of 2788444 is about 1669.8634674727. The cubic root of 2788444 is about 140.7518058842.

It can be divided in two parts, 278 and 8444, that multiplied together give a palindrome (2347432).

The spelling of 2788444 in words is "two million, seven hundred eighty-eight thousand, four hundred forty-four".