28059642 has 32 divisors (see below), whose sum is σ = 67152960. Its totient is φ = 8633520.

The previous prime is 28059641. The next prime is 28059677. The reversal of 28059642 is 24695082.

It is a happy number.

28059642 is a `hidden beast` number, since 2 + 8 + 0 + 5 + 9 + 642 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 28059597 and 28059606.

It is not an unprimeable number, because it can be changed into a prime (28059641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19284 + ... + 20687.

It is an arithmetic number, because the mean of its divisors is an integer number (2098530).

Almost surely, 2^28059642 is an apocalyptic number.

28059642 is an abundant number, since it is smaller than the sum of its proper divisors (39093318).

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

28059642 is a wasteful number, since it uses less digits than its factorization.

28059642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39995 (or 39989 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 28059642 is about 5297.1352635174. The cubic root of 28059642 is about 303.8743493307.

The spelling of 28059642 in words is "twenty-eight million, fifty-nine thousand, six hundred forty-two".