2784742 has 8 divisors (see below), whose sum is σ = 4205232. Its totient is φ = 1383000.

The previous prime is 2784713. The next prime is 2784757. The reversal of 2784742 is 2474872.

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 = 2784698 and 2784707.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4309 + ... + 4912.

It is an arithmetic number, because the mean of its divisors is an integer number (525654).

2^2784742 is an apocalyptic number.

2784742 is a deficient number, since it is larger than the sum of its proper divisors (1420490).

2784742 is a wasteful number, since it uses less digits than its factorization.

2784742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9374.

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

The square root of 2784742 is about 1668.7546254618. The cubic root of 2784742 is about 140.6894898940.

It can be divided in two parts, 27847 and 42, that added together give a square (27889 = 167²).

The spelling of 2784742 in words is "two million, seven hundred eighty-four thousand, seven hundred forty-two".