2528407 has 6 divisors (see below), whose sum is σ = 2894424. Its totient is φ = 2163600.

The previous prime is 2528399. The next prime is 2528411. The reversal of 2528407 is 7048252.

2528407 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2528407 - 2³ = 2528399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2528497) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 3907 + ... + 4507.

It is an arithmetic number, because the mean of its divisors is an integer number (482404).

2^2528407 is an apocalyptic number.

2528407 is a deficient number, since it is larger than the sum of its proper divisors (366017).

2528407 is an frugal number, since it uses more digits than its factorization.

2528407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1209 (or 608 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 2528407 is about 1590.0965379498. The cubic root of 2528407 is about 136.2330023966.

Multiplying 2528407 by its sum of digits (28), we get a square (70795396 = 8414²).

The spelling of 2528407 in words is "two million, five hundred twenty-eight thousand, four hundred seven".