78452016 has 20 divisors (see below), whose sum is σ = 202667832. Its totient is φ = 26150656.

The previous prime is 78451981. The next prime is 78452021. The reversal of 78452016 is 61025487.

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 3 ways as a sum of consecutive naturals, for example, 817161 + ... + 817256.

Almost surely, 2^78452016 is an apocalyptic number.

It is an amenable number.

78452016 is an abundant number, since it is smaller than the sum of its proper divisors (124215816).

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

78452016 is a wasteful number, since it uses less digits than its factorization.

78452016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1634428 (or 1634422 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 78452016 is about 8857.3142656225. The cubic root of 78452016 is about 428.0896251589.

The spelling of 78452016 in words is "seventy-eight million, four hundred fifty-two thousand, sixteen".