78303330 has 48 divisors (see below), whose sum is σ = 232674624. Its totient is φ = 17897760.

The previous prime is 78303307. The next prime is 78303341. The reversal of 78303330 is 3330387.

It is a super-2 number, since 2×78303330² = 12262822978177800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78303294 and 78303303.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 61516 + ... + 62775.

It is an arithmetic number, because the mean of its divisors is an integer number (4847388).

Almost surely, 2^78303330 is an apocalyptic number.

78303330 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

78303330 is an abundant number, since it is smaller than the sum of its proper divisors (154371294).

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

78303330 is a wasteful number, since it uses less digits than its factorization.

78303330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124311 (or 124308 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 27.

The square root of 78303330 is about 8848.9168828733. The cubic root of 78303330 is about 427.8190088379.

The spelling of 78303330 in words is "seventy-eight million, three hundred three thousand, three hundred thirty".