2599428 has 48 divisors (see below), whose sum is σ = 6883520. Its totient is φ = 756864.

The previous prime is 2599427. The next prime is 2599451. The reversal of 2599428 is 8249952.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (2599427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2526 + ... + 3402.

2^2599428 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 2599428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3441760).

2599428 is an abundant number, since it is smaller than the sum of its proper divisors (4284092).

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

2599428 is a wasteful number, since it uses less digits than its factorization.

2599428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 916 (or 914 counting only the distinct ones).

The product of its digits is 51840, while the sum is 39.

The square root of 2599428 is about 1612.2741702328. The cubic root of 2599428 is about 137.4968021295.

The spelling of 2599428 in words is "two million, five hundred ninety-nine thousand, four hundred twenty-eight".