69281228 has 6 divisors (see below), whose sum is σ = 121242156. Its totient is φ = 34640612.

The previous prime is 69281209. The next prime is 69281237. The reversal of 69281228 is 82218296.

It is a junction number, because it is equal to n+sod(n) for n = 69281191 and 69281200.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8660150 + ... + 8660157.

It is an arithmetic number, because the mean of its divisors is an integer number (20207026).

Almost surely, 2^69281228 is an apocalyptic number.

It is an amenable number.

69281228 is a deficient number, since it is larger than the sum of its proper divisors (51960928).

69281228 is a wasteful number, since it uses less digits than its factorization.

69281228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17320311 (or 17320309 counting only the distinct ones).

The product of its digits is 27648, while the sum is 38.

The square root of 69281228 is about 8323.5345857394. The cubic root of 69281228 is about 410.7130720151.

The spelling of 69281228 in words is "sixty-nine million, two hundred eighty-one thousand, two hundred twenty-eight".