78336492 has 48 divisors (see below), whose sum is σ = 197403360. Its totient is φ = 24035328.

The previous prime is 78336469. The next prime is 78336499. The reversal of 78336492 is 29463387.

It is a super-2 number, since 2×78336492² = 12273211957732128, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78336499) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101484 + ... + 102252.

It is an arithmetic number, because the mean of its divisors is an integer number (4112570).

Almost surely, 2^78336492 is an apocalyptic number.

It is an amenable number.

78336492 is an abundant number, since it is smaller than the sum of its proper divisors (119066868).

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

78336492 is a wasteful number, since it uses less digits than its factorization.

78336492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1442 (or 1440 counting only the distinct ones).

The product of its digits is 217728, while the sum is 42.

The square root of 78336492 is about 8850.7904731724. The cubic root of 78336492 is about 427.8793950805.

The spelling of 78336492 in words is "seventy-eight million, three hundred thirty-six thousand, four hundred ninety-two".