2787442 has 8 divisors (see below), whose sum is σ = 4778496. Its totient is φ = 1194612.

The previous prime is 2787419. The next prime is 2787443. The reversal of 2787442 is 2447872.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 2787398 and 2787407.

It is not an unprimeable number, because it can be changed into a prime (2787443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99538 + ... + 99565.

It is an arithmetic number, because the mean of its divisors is an integer number (597312).

2^2787442 is an apocalyptic number.

2787442 is a deficient number, since it is larger than the sum of its proper divisors (1991054).

2787442 is a wasteful number, since it uses less digits than its factorization.

2787442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199112.

The product of its digits is 25088, while the sum is 34.

The square root of 2787442 is about 1669.5634159863. The cubic root of 2787442 is about 140.7349446042.

The spelling of 2787442 in words is "two million, seven hundred eighty-seven thousand, four hundred forty-two".