78250272 has 48 divisors (see below), whose sum is σ = 206059392. Its totient is φ = 26000640.

The previous prime is 78250261. The next prime is 78250279. The reversal of 78250272 is 27205287.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×78250272² = 12246210136147968, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78250279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34122 + ... + 36342.

It is an arithmetic number, because the mean of its divisors is an integer number (4292904).

Almost surely, 2^78250272 is an apocalyptic number.

It is an amenable number.

78250272 is an abundant number, since it is smaller than the sum of its proper divisors (127809120).

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

78250272 is a wasteful number, since it uses less digits than its factorization.

78250272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2601 (or 2593 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 33.

The square root of 78250272 is about 8845.9183808127. The cubic root of 78250272 is about 427.7223575637.

The spelling of 78250272 in words is "seventy-eight million, two hundred fifty thousand, two hundred seventy-two".