28542906 has 24 divisors (see below), whose sum is σ = 70677984. Its totient is φ = 8155080.

The previous prime is 28542893. The next prime is 28542979. The reversal of 28542906 is 60924582.

It is a happy number.

28542906 is a `hidden beast` number, since 28 + 542 + 90 + 6 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 113140 + ... + 113391.

It is an arithmetic number, because the mean of its divisors is an integer number (2944916).

Almost surely, 2^28542906 is an apocalyptic number.

28542906 is an abundant number, since it is smaller than the sum of its proper divisors (42135078).

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

28542906 is a wasteful number, since it uses less digits than its factorization.

28542906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226546 (or 226543 counting only the distinct ones).

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

The square root of 28542906 is about 5342.5561297941. The cubic root of 28542906 is about 305.6089455478.

The spelling of 28542906 in words is "twenty-eight million, five hundred forty-two thousand, nine hundred six".