28342536 has 32 divisors (see below), whose sum is σ = 75025440. Its totient is φ = 8891648.

The previous prime is 28342529. The next prime is 28342571. The reversal of 28342536 is 63524382.

It is a happy number.

It is a super-2 number, since 2×28342536² = 1606598693822592, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 28342497 and 28342506.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34326 + ... + 35141.

It is an arithmetic number, because the mean of its divisors is an integer number (2344545).

Almost surely, 2^28342536 is an apocalyptic number.

It is an amenable number.

28342536 is an abundant number, since it is smaller than the sum of its proper divisors (46682904).

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

28342536 is a wasteful number, since it uses less digits than its factorization.

28342536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69493 (or 69489 counting only the distinct ones).

The product of its digits is 34560, while the sum is 33.

The square root of 28342536 is about 5323.7708440541. The cubic root of 28342536 is about 304.8921449694.

The spelling of 28342536 in words is "twenty-eight million, three hundred forty-two thousand, five hundred thirty-six".