2546478 has 40 divisors (see below), whose sum is σ = 6229080. Its totient is φ = 771120.

The previous prime is 2546443. The next prime is 2546497. The reversal of 2546478 is 8746452.

2546478 is a `hidden beast` number, since 2 + 5 + 4 + 647 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1068 + ... + 2496.

It is an arithmetic number, because the mean of its divisors is an integer number (155727).

2^2546478 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2546478, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3114540).

2546478 is an abundant number, since it is smaller than the sum of its proper divisors (3682602).

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

2546478 is a wasteful number, since it uses less digits than its factorization.

2546478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1454 (or 1445 counting only the distinct ones).

The product of its digits is 53760, while the sum is 36.

The square root of 2546478 is about 1595.7687802436. The cubic root of 2546478 is about 136.5567931765.

The spelling of 2546478 in words is "two million, five hundred forty-six thousand, four hundred seventy-eight".