2547456 has 72 divisors (see below), whose sum is σ = 7064064. Its totient is φ = 814080.

The previous prime is 2547451. The next prime is 2547469. The reversal of 2547456 is 6547452.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2547451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23755 + ... + 23861.

It is an arithmetic number, because the mean of its divisors is an integer number (98112).

2^2547456 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 2547456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3532032).

2547456 is an abundant number, since it is smaller than the sum of its proper divisors (4516608).

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

2547456 is a wasteful number, since it uses less digits than its factorization.

2547456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157 (or 143 counting only the distinct ones).

The product of its digits is 33600, while the sum is 33.

The square root of 2547456 is about 1596.0751861989. The cubic root of 2547456 is about 136.5742729335.

Multiplying 2547456 by its sum of digits (33), we get a palindrome (84066048).

It can be divided in two parts, 2547 and 456, that added together give a palindrome (3003).

The spelling of 2547456 in words is "two million, five hundred forty-seven thousand, four hundred fifty-six".