28169010 has 24 divisors (see below), whose sum is σ = 73239660. Its totient is φ = 7511712.

The previous prime is 28168991. The next prime is 28169033. The reversal of 28169010 is 1096182.

It can be written as a sum of positive squares in 2 ways, for example, as 28164249 + 4761 = 5307^2 + 69^2 .

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, 156405 + ... + 156584.

Almost surely, 2^28169010 is an apocalyptic number.

28169010 is an abundant number, since it is smaller than the sum of its proper divisors (45070650).

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

28169010 is a wasteful number, since it uses less digits than its factorization.

28169010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313002 (or 312999 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 28169010 is about 5307.4485395527. The cubic root of 28169010 is about 304.2686409404.

The spelling of 28169010 in words is "twenty-eight million, one hundred sixty-nine thousand, ten".