79800144 has 20 divisors (see below), whose sum is σ = 206150496. Its totient is φ = 26600032.

The previous prime is 79800143. The next prime is 79800151. The reversal of 79800144 is 44100897.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79800143) 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 3 ways as a sum of consecutive naturals, for example, 831204 + ... + 831299.

Almost surely, 2^79800144 is an apocalyptic number.

It is an amenable number.

79800144 is an abundant number, since it is smaller than the sum of its proper divisors (126350352).

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

79800144 is a wasteful number, since it uses less digits than its factorization.

79800144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1662514 (or 1662508 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 79800144 is about 8933.0926335732. The cubic root of 79800144 is about 430.5278248785.

The spelling of 79800144 in words is "seventy-nine million, eight hundred thousand, one hundred forty-four".