28535742 has 12 divisors (see below), whose sum is σ = 61827480. Its totient is φ = 9511908.

The previous prime is 28535737. The next prime is 28535807. The reversal of 28535742 is 24753582.

28535742 is a `hidden beast` number, since 2 + 85 + 3 + 574 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 28535697 and 28535706.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 792642 + ... + 792677.

It is an arithmetic number, because the mean of its divisors is an integer number (5152290).

Almost surely, 2^28535742 is an apocalyptic number.

28535742 is an abundant number, since it is smaller than the sum of its proper divisors (33291738).

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

28535742 is a wasteful number, since it uses less digits than its factorization.

28535742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1585327 (or 1585324 counting only the distinct ones).

The product of its digits is 67200, while the sum is 36.

The square root of 28535742 is about 5341.8856221376. The cubic root of 28535742 is about 305.5833750881.

The spelling of 28535742 in words is "twenty-eight million, five hundred thirty-five thousand, seven hundred forty-two".