2520028 has 12 divisors (see below), whose sum is σ = 5040112. Its totient is φ = 1080000.

The previous prime is 2520017. The next prime is 2520031. The reversal of 2520028 is 8200252.

2520028 = 597² + 598² + ... + 603².

2520028 is an admirable number.

It is a super-2 number, since 2×2520028² = 12701082241568, which contains 22 as substring.

It is a hoax number, since the sum of its digits (19) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 2519987 and 2520014.

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 3 ways as a sum of consecutive naturals, for example, 44973 + ... + 45028.

2^2520028 is an apocalyptic number.

2520028 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2520028 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2520028 is a wasteful number, since it uses less digits than its factorization.

2520028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90012 (or 90010 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 2520028 is about 1587.4596057853. The cubic root of 2520028 is about 136.0823463240.

It can be divided in two parts, 25200 and 28, that multiplied together give a square (705600 = 840²).

The spelling of 2520028 in words is "two million, five hundred twenty thousand, twenty-eight".