28169346 has 32 divisors (see below), whose sum is σ = 57968640. Its totient is φ = 9122256.

The previous prime is 28169299. The next prime is 28169347. The reversal of 28169346 is 64396182.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (28169347) 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, 31315 + ... + 32201.

It is an arithmetic number, because the mean of its divisors is an integer number (1811520).

Almost surely, 2^28169346 is an apocalyptic number.

28169346 is an abundant number, since it is smaller than the sum of its proper divisors (29799294).

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

28169346 is a wasteful number, since it uses less digits than its factorization.

28169346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1038.

The product of its digits is 62208, while the sum is 39.

The square root of 28169346 is about 5307.4801930860. The cubic root of 28169346 is about 304.2698507079.

The spelling of 28169346 in words is "twenty-eight million, one hundred sixty-nine thousand, three hundred forty-six".