78227030 has 48 divisors (see below), whose sum is σ = 173451456. Its totient is φ = 25240320.

The previous prime is 78227029. The next prime is 78227033. The reversal of 78227030 is 3072287.

It is a super-2 number, since 2×78227030² = 12238936445241800, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 78226984 and 78227002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78227033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3635 + ... + 13025.

It is an arithmetic number, because the mean of its divisors is an integer number (3613572).

Almost surely, 2^78227030 is an apocalyptic number.

78227030 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

78227030 is an abundant number, since it is smaller than the sum of its proper divisors (95224426).

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

78227030 is a wasteful number, since it uses less digits than its factorization.

78227030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9429 (or 9422 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 78227030 is about 8844.6045700189. The cubic root of 78227030 is about 427.6800058155.

The spelling of 78227030 in words is "seventy-eight million, two hundred twenty-seven thousand, thirty".