78417230 has 16 divisors (see below), whose sum is σ = 141253200. Its totient is φ = 31344192.

The previous prime is 78417223. The next prime is 78417289. The reversal of 78417230 is 3271487.

It is a happy number.

It is a super-2 number, since 2×78417230² = 12298523921745800, which contains 22 as substring.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 22121 + ... + 25419.

It is an arithmetic number, because the mean of its divisors is an integer number (8828325).

Almost surely, 2^78417230 is an apocalyptic number.

78417230 is a deficient number, since it is larger than the sum of its proper divisors (62835970).

78417230 is a wasteful number, since it uses less digits than its factorization.

78417230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5683.

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 78417230 is about 8855.3503600930. The cubic root of 78417230 is about 428.0263434742.

The spelling of 78417230 in words is "seventy-eight million, four hundred seventeen thousand, two hundred thirty".