2625428 has 24 divisors (see below), whose sum is σ = 5121480. Its totient is φ = 1169280.

The previous prime is 2625397. The next prime is 2625433. The reversal of 2625428 is 8245262.

It can be written as a sum of positive squares in 4 ways, for example, as 71824 + 2553604 = 268^2 + 1598^2 .

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a self number, because there is not a number n which added to its sum of digits gives 2625428.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 638 + ... + 2378.

It is an arithmetic number, because the mean of its divisors is an integer number (213395).

2^2625428 is an apocalyptic number.

It is an amenable number.

2625428 is a deficient number, since it is larger than the sum of its proper divisors (2496052).

2625428 is a wasteful number, since it uses less digits than its factorization.

2625428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1787 (or 1785 counting only the distinct ones).

The product of its digits is 7680, while the sum is 29.

The square root of 2625428 is about 1620.3172528860. The cubic root of 2625428 is about 137.9537056786.

The spelling of 2625428 in words is "two million, six hundred twenty-five thousand, four hundred twenty-eight".