2528406 has 24 divisors (see below), whose sum is σ = 5767320. Its totient is φ = 798336.

The previous prime is 2528399. The next prime is 2528411. The reversal of 2528406 is 6048252.

2528406 is a `hidden beast` number, since 252 + 8 + 406 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 2528406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3355 + ... + 4038.

It is an arithmetic number, because the mean of its divisors is an integer number (240305).

2^2528406 is an apocalyptic number.

2528406 is an abundant number, since it is smaller than the sum of its proper divisors (3238914).

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

2528406 is a wasteful number, since it uses less digits than its factorization.

2528406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7420 (or 7417 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 2528406 is about 1590.0962235035. The cubic root of 2528406 is about 136.2329844363.

The spelling of 2528406 in words is "two million, five hundred twenty-eight thousand, four hundred six".