139748448 has 192 divisors, whose sum is σ = 444165120. Its totient is φ = 37632000.

The previous prime is 139748447. The next prime is 139748461. The reversal of 139748448 is 844847931.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 139748397 and 139748406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139748447) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1383598 + ... + 1383698.

It is an arithmetic number, because the mean of its divisors is an integer number (2313360).

Almost surely, 2^139748448 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 139748448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (222082560).

139748448 is an abundant number, since it is smaller than the sum of its proper divisors (304416672).

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

139748448 is a wasteful number, since it uses less digits than its factorization.

139748448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221 (or 213 counting only the distinct ones).

The product of its digits is 774144, while the sum is 48.

The square root of 139748448 is about 11821.5247747488. The cubic root of 139748448 is about 518.9382279531.

It can be divided in two parts, 13974 and 8448, that added together give a palindrome (22422).

The spelling of 139748448 in words is "one hundred thirty-nine million, seven hundred forty-eight thousand, four hundred forty-eight".