78448150 has 48 divisors (see below), whose sum is σ = 167578560. Its totient is φ = 27021600.

The previous prime is 78448127. The next prime is 78448157. The reversal of 78448150 is 5184487.

It is a super-2 number, since 2×78448150² = 12308224476845000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78448157) 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, 6697 + ... + 14203.

It is an arithmetic number, because the mean of its divisors is an integer number (3491220).

Almost surely, 2^78448150 is an apocalyptic number.

78448150 is an abundant number, since it is smaller than the sum of its proper divisors (89130410).

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

78448150 is a wasteful number, since it uses less digits than its factorization.

78448150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7549 (or 7544 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 37.

The square root of 78448150 is about 8857.0960252218. The cubic root of 78448150 is about 428.0825931676.

The spelling of 78448150 in words is "seventy-eight million, four hundred forty-eight thousand, one hundred fifty".