28536426 has 48 divisors (see below), whose sum is σ = 64022400. Its totient is φ = 9180864.

The previous prime is 28536407. The next prime is 28536437. The reversal of 28536426 is 62463582.

28536426 is a `hidden beast` number, since 2 + 8 + 5 + 3 + 642 + 6 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 75105 + ... + 75483.

It is an arithmetic number, because the mean of its divisors is an integer number (1333800).

Almost surely, 2^28536426 is an apocalyptic number.

28536426 is an abundant number, since it is smaller than the sum of its proper divisors (35485974).

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

28536426 is a wasteful number, since it uses less digits than its factorization.

28536426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 523 (or 520 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 28536426 is about 5341.9496440906. The cubic root of 28536426 is about 305.5858166736.

It can be divided in two parts, 285364 and 26, that added together give a triangular number (285390 = T₇₅₅).

The spelling of 28536426 in words is "twenty-eight million, five hundred thirty-six thousand, four hundred twenty-six".