28394102 has 12 divisors (see below), whose sum is σ = 46815468. Its totient is φ = 12906300.

The previous prime is 28394089. The next prime is 28394129. The reversal of 28394102 is 20149382.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 58424 + ... + 58907.

It is an arithmetic number, because the mean of its divisors is an integer number (3901289).

Almost surely, 2^28394102 is an apocalyptic number.

28394102 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

28394102 is a deficient number, since it is larger than the sum of its proper divisors (18421366).

28394102 is a wasteful number, since it uses less digits than its factorization.

28394102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117355 (or 117344 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 28394102 is about 5328.6116390670. The cubic root of 28394102 is about 305.0769383972.

The spelling of 28394102 in words is "twenty-eight million, three hundred ninety-four thousand, one hundred two".