157744448 has 14 divisors (see below), whose sum is σ = 313024266. Its totient is φ = 78872192.

The previous prime is 157744421. The next prime is 157744451. The reversal of 157744448 is 844447751.

157744448 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 107163904 + 50580544 = 10352^2 + 7112^2 .

It is a junction number, because it is equal to n+sod(n) for n = 157744399 and 157744408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1232315 + ... + 1232442.

Almost surely, 2^157744448 is an apocalyptic number.

It is an amenable number.

157744448 is a deficient number, since it is larger than the sum of its proper divisors (155279818).

157744448 is an equidigital number, since it uses as much as digits as its factorization.

157744448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2464769 (or 2464759 counting only the distinct ones).

The product of its digits is 501760, while the sum is 44.

The square root of 157744448 is about 12559.6356635055. The cubic root of 157744448 is about 540.3203951408.

The spelling of 157744448 in words is "one hundred fifty-seven million, seven hundred forty-four thousand, four hundred forty-eight".