78456130 has 48 divisors (see below), whose sum is σ = 151205184. Its totient is φ = 29302560.

The previous prime is 78456121. The next prime is 78456137. The reversal of 78456130 is 3165487.

It is not an unprimeable number, because it can be changed into a prime (78456137) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 371725 + ... + 371935.

It is an arithmetic number, because the mean of its divisors is an integer number (3150108).

Almost surely, 2^78456130 is an apocalyptic number.

78456130 is a deficient number, since it is larger than the sum of its proper divisors (72749054).

78456130 is a wasteful number, since it uses less digits than its factorization.

78456130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359 (or 340 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 78456130 is about 8857.5465000191. The cubic root of 78456130 is about 428.0971079916.

The spelling of 78456130 in words is "seventy-eight million, four hundred fifty-six thousand, one hundred thirty".