2578772 has 36 divisors (see below), whose sum is σ = 5362560. Its totient is φ = 1081584.

The previous prime is 2578759. The next prime is 2578787. The reversal of 2578772 is 2778752.

2578772 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 11453 + ... + 11675.

It is an arithmetic number, because the mean of its divisors is an integer number (148960).

2^2578772 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2578772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2681280).

2578772 is an abundant number, since it is smaller than the sum of its proper divisors (2783788).

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

2578772 is a wasteful number, since it uses less digits than its factorization.

2578772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300 (or 291 counting only the distinct ones).

The product of its digits is 54880, while the sum is 38.

The square root of 2578772 is about 1605.8555352210. The cubic root of 2578772 is about 137.1316332994.

The spelling of 2578772 in words is "two million, five hundred seventy-eight thousand, seven hundred seventy-two".