78068450 has 24 divisors (see below), whose sum is σ = 145507428. Its totient is φ = 31162880.

The previous prime is 78068449. The next prime is 78068453. The reversal of 78068450 is 5486087.

It can be written as a sum of positive squares in 6 ways, for example, as 19070689 + 58997761 = 4367^2 + 7681^2 .

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (78068453) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28334 + ... + 30966.

Almost surely, 2^78068450 is an apocalyptic number.

78068450 is a deficient number, since it is larger than the sum of its proper divisors (67438978).

78068450 is a wasteful number, since it uses less digits than its factorization.

78068450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3238 (or 3233 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 38.

The square root of 78068450 is about 8835.6352346620. The cubic root of 78068450 is about 427.3908160231.

The spelling of 78068450 in words is "seventy-eight million, sixty-eight thousand, four hundred fifty".