78446056 has 16 divisors (see below), whose sum is σ = 158400900. Its totient is φ = 36205824.

The previous prime is 78446051. The next prime is 78446057. The reversal of 78446056 is 65064487.

It can be written as a sum of positive squares in 2 ways, for example, as 72829156 + 5616900 = 8534^2 + 2370^2 .

It is not an unprimeable number, because it can be changed into a prime (78446051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 377041 + ... + 377248.

Almost surely, 2^78446056 is an apocalyptic number.

It is an amenable number.

78446056 is an abundant number, since it is smaller than the sum of its proper divisors (79954844).

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

78446056 is a wasteful number, since it uses less digits than its factorization.

78446056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 754308 (or 754304 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 40.

The square root of 78446056 is about 8856.9778141305. The cubic root of 78446056 is about 428.0787842275.

The spelling of 78446056 in words is "seventy-eight million, four hundred forty-six thousand, fifty-six".