28052619 has 24 divisors (see below), whose sum is σ = 43580160. Its totient is φ = 15723360.

The previous prime is 28052593. The next prime is 28052627. The reversal of 28052619 is 91625082.

28052619 = T₂₀₂ + T₂₀₃ + ... + T₅₆₀.

It is not a de Polignac number, because 28052619 - 2⁵ = 28052587 is a prime.

It is a super-2 number, since 2×28052619² = 1573898865518322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 28052619.

It is not an unprimeable number, because it can be changed into a prime (28052639) 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 23 ways as a sum of consecutive naturals, for example, 77962 + ... + 78320.

It is an arithmetic number, because the mean of its divisors is an integer number (1815840).

Almost surely, 2^28052619 is an apocalyptic number.

28052619 is a deficient number, since it is larger than the sum of its proper divisors (15527541).

28052619 is an equidigital number, since it uses as much as digits as its factorization.

28052619 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491 (or 430 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 28052619 is about 5296.4723165518. The cubic root of 28052619 is about 303.8489951509.

The spelling of 28052619 in words is "twenty-eight million, fifty-two thousand, six hundred nineteen".