78026250 has 40 divisors (see below), whose sum is σ = 195012576. Its totient is φ = 20806000.

The previous prime is 78026227. The next prime is 78026329. The reversal of 78026250 is 5262087.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

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 19 ways as a sum of consecutive naturals, for example, 6654 + ... + 14153.

Almost surely, 2^78026250 is an apocalyptic number.

78026250 is an abundant number, since it is smaller than the sum of its proper divisors (116986326).

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

78026250 is a wasteful number, since it uses less digits than its factorization.

78026250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20832 (or 20817 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 78026250 is about 8833.2468549226. The cubic root of 78026250 is about 427.3137932600.

The spelling of 78026250 in words is "seventy-eight million, twenty-six thousand, two hundred fifty".