78300228 has 24 divisors (see below), whose sum is σ = 182891520. Its totient is φ = 26072800.

The previous prime is 78300227. The next prime is 78300253. The reversal of 78300228 is 82200387.

It is a super-2 number, since 2×78300228² = 12261851409703968, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78300195 and 78300204.

It is not an unprimeable number, because it can be changed into a prime (78300223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10978 + ... + 16646.

It is an arithmetic number, because the mean of its divisors is an integer number (7620480).

Almost surely, 2^78300228 is an apocalyptic number.

It is an amenable number.

78300228 is an abundant number, since it is smaller than the sum of its proper divisors (104591292).

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

78300228 is a wasteful number, since it uses less digits than its factorization.

78300228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6827 (or 6825 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 78300228 is about 8848.7416054488. The cubic root of 78300228 is about 427.8133593886.

The spelling of 78300228 in words is "seventy-eight million, three hundred thousand, two hundred twenty-eight".