28046890 has 32 divisors (see below), whose sum is σ = 53032320. Its totient is φ = 10659264.

The previous prime is 28046881. The next prime is 28046897. The reversal of 28046890 is 9864082.

It is not an unprimeable number, because it can be changed into a prime (28046897) 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, 45001 + ... + 45619.

It is an arithmetic number, because the mean of its divisors is an integer number (1657260).

Almost surely, 2^28046890 is an apocalyptic number.

28046890 is a deficient number, since it is larger than the sum of its proper divisors (24985430).

28046890 is a wasteful number, since it uses less digits than its factorization.

28046890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 846.

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 28046890 is about 5295.9314572604. The cubic root of 28046890 is about 303.8283093888.

The spelling of 28046890 in words is "twenty-eight million, forty-six thousand, eight hundred ninety".