2742978 has 16 divisors (see below), whose sum is σ = 6269760. Its totient is φ = 783696.

The previous prime is 2742977. The next prime is 2742979. The reversal of 2742978 is 8792472.

2742978 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2742977) and next prime (2742979).

It is not an unprimeable number, because it can be changed into a prime (2742977) 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 7 ways as a sum of consecutive naturals, for example, 32613 + ... + 32696.

It is an arithmetic number, because the mean of its divisors is an integer number (391860).

2^2742978 is an apocalyptic number.

2742978 is an abundant number, since it is smaller than the sum of its proper divisors (3526782).

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

2742978 is a wasteful number, since it uses less digits than its factorization.

2742978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65321.

The product of its digits is 56448, while the sum is 39.

The square root of 2742978 is about 1656.1938292362. The cubic root of 2742978 is about 139.9826168893.

The spelling of 2742978 in words is "two million, seven hundred forty-two thousand, nine hundred seventy-eight".