2654778 has 32 divisors (see below), whose sum is σ = 6266880. Its totient is φ = 733680.

The previous prime is 2654767. The next prime is 2654779. The reversal of 2654778 is 8774562.

It is not an unprimeable number, because it can be changed into a prime (2654779) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 283 + ... + 2321.

It is an arithmetic number, because the mean of its divisors is an integer number (195840).

2^2654778 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2654778, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3133440).

2654778 is an abundant number, since it is smaller than the sum of its proper divisors (3612102).

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

2654778 is a wasteful number, since it uses less digits than its factorization.

2654778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2082.

The product of its digits is 94080, while the sum is 39.

The square root of 2654778 is about 1629.3489497342. The cubic root of 2654778 is about 138.4658693327.

The spelling of 2654778 in words is "two million, six hundred fifty-four thousand, seven hundred seventy-eight".