140168448 has 144 divisors (see below), whose sum is σ = 473880960. Its totient is φ = 40034304.

The previous prime is 140168443. The next prime is 140168461. The reversal of 140168448 is 844861041.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140168443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46936 + ... + 49832.

It is an arithmetic number, because the mean of its divisors is an integer number (3290840).

Almost surely, 2^140168448 is an apocalyptic number.

140168448 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140168448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (236940480).

140168448 is an abundant number, since it is smaller than the sum of its proper divisors (333712512).

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

140168448 is an equidigital number, since it uses as much as digits as its factorization.

140168448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2929 (or 2909 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 36.

The square root of 140168448 is about 11839.2756535187. The cubic root of 140168448 is about 519.4575803474.

The spelling of 140168448 in words is "one hundred forty million, one hundred sixty-eight thousand, four hundred forty-eight".