28542195 has 72 divisors (see below), whose sum is σ = 56936880. Its totient is φ = 13115520.

The previous prime is 28542193. The next prime is 28542203. The reversal of 28542195 is 59124582.

28542195 is a `hidden beast` number, since 28 + 542 + 1 + 95 = 666.

It is not a de Polignac number, because 28542195 - 2¹ = 28542193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28542193) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 261801 + ... + 261909.

It is an arithmetic number, because the mean of its divisors is an integer number (790790).

Almost surely, 2^28542195 is an apocalyptic number.

28542195 is a deficient number, since it is larger than the sum of its proper divisors (28394685).

28542195 is a wasteful number, since it uses less digits than its factorization.

28542195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177 (or 151 counting only the distinct ones).

The product of its digits is 28800, while the sum is 36.

The square root of 28542195 is about 5342.4895881976. The cubic root of 28542195 is about 305.6064079673.

The spelling of 28542195 in words is "twenty-eight million, five hundred forty-two thousand, one hundred ninety-five".