28294308 has 36 divisors (see below), whose sum is σ = 81739840. Its totient is φ = 8084016.

The previous prime is 28294283. The next prime is 28294313. The reversal of 28294308 is 80349282.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 55888 + ... + 56391.

Almost surely, 2^28294308 is an apocalyptic number.

28294308 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

28294308 is an abundant number, since it is smaller than the sum of its proper divisors (53445532).

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

28294308 is a wasteful number, since it uses less digits than its factorization.

28294308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112296 (or 112291 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 28294308 is about 5319.2394193155. The cubic root of 28294308 is about 304.7191107401.

The spelling of 28294308 in words is "twenty-eight million, two hundred ninety-four thousand, three hundred eight".