78203030 has 8 divisors (see below), whose sum is σ = 140765472. Its totient is φ = 31281208.

The previous prime is 78203023. The next prime is 78203033. The reversal of 78203030 is 3030287.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×78203030² = 12231427802361800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78202987 and 78203005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78203033) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 3910142 + ... + 3910161.

It is an arithmetic number, because the mean of its divisors is an integer number (17595684).

Almost surely, 2^78203030 is an apocalyptic number.

78203030 is a deficient number, since it is larger than the sum of its proper divisors (62562442).

78203030 is a wasteful number, since it uses less digits than its factorization.

78203030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7820310.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 78203030 is about 8843.2477065838. The cubic root of 78203030 is about 427.6362640296.

The spelling of 78203030 in words is "seventy-eight million, two hundred three thousand, thirty".