78542296 has 24 divisors (see below), whose sum is σ = 171311220. Its totient is φ = 33660816.

The previous prime is 78542293. The next prime is 78542297. The reversal of 78542296 is 69224587.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78542293) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 99790 + ... + 100573.

Almost surely, 2^78542296 is an apocalyptic number.

It is an amenable number.

78542296 is an abundant number, since it is smaller than the sum of its proper divisors (92768924).

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

78542296 is a wasteful number, since it uses less digits than its factorization.

78542296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200383 (or 200372 counting only the distinct ones).

The product of its digits is 241920, while the sum is 43.

The square root of 78542296 is about 8862.4091532720. The cubic root of 78542296 is about 428.2537726972.

The spelling of 78542296 in words is "seventy-eight million, five hundred forty-two thousand, two hundred ninety-six".