78214204 has 24 divisors (see below), whose sum is σ = 141261120. Its totient is φ = 37871616.

The previous prime is 78214181. The next prime is 78214211. The reversal of 78214204 is 40241287.

It is a super-2 number, since 2×78214204² = 12234923414707232, 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, 16092 + ... + 20380.

It is an arithmetic number, because the mean of its divisors is an integer number (5885880).

Almost surely, 2^78214204 is an apocalyptic number.

It is an amenable number.

78214204 is a deficient number, since it is larger than the sum of its proper divisors (63046916).

78214204 is a wasteful number, since it uses less digits than its factorization.

78214204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4437 (or 4435 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 28.

The square root of 78214204 is about 8843.8794654835. The cubic root of 78214204 is about 427.6566305893.

The spelling of 78214204 in words is "seventy-eight million, two hundred fourteen thousand, two hundred four".