78226330 has 128 divisors (see below), whose sum is σ = 185794560. Its totient is φ = 23051520.

The previous prime is 78226321. The next prime is 78226387. The reversal of 78226330 is 3362287.

It is a super-2 number, since 2×78226330² = 12238717410537800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a junction number, because it is equal to n+sod(n) for n = 78226292 and 78226301.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 1325841 + ... + 1325899.

It is an arithmetic number, because the mean of its divisors is an integer number (1451520).

Almost surely, 2^78226330 is an apocalyptic number.

78226330 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

78226330 is an abundant number, since it is smaller than the sum of its proper divisors (107568230).

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

78226330 is a wasteful number, since it uses less digits than its factorization.

78226330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 78226330 is about 8844.5649977825. The cubic root of 78226330 is about 427.6787301401.

The spelling of 78226330 in words is "seventy-eight million, two hundred twenty-six thousand, three hundred thirty".