78470380 has 24 divisors (see below), whose sum is σ = 173461680. Its totient is φ = 29736000.

The previous prime is 78470363. The next prime is 78470387. The reversal of 78470380 is 8307487.

It is not an unprimeable number, because it can be changed into a prime (78470387) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102871 + ... + 103630.

It is an arithmetic number, because the mean of its divisors is an integer number (7227570).

Almost surely, 2^78470380 is an apocalyptic number.

It is an amenable number.

78470380 is an abundant number, since it is smaller than the sum of its proper divisors (94991300).

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

78470380 is a wasteful number, since it uses less digits than its factorization.

78470380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206529 (or 206527 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 37.

The square root of 78470380 is about 8858.3508623219. The cubic root of 78470380 is about 428.1230248723.

The spelling of 78470380 in words is "seventy-eight million, four hundred seventy thousand, three hundred eighty".