140736672 has 72 divisors (see below), whose sum is σ = 404048736. Its totient is φ = 46463616.

The previous prime is 140736671. The next prime is 140736689. The reversal of 140736672 is 276637041.

It is a tau number, because it is divible by the number of its divisors (72).

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

It is not an unprimeable number, because it can be changed into a prime (140736671) 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 11 ways as a sum of consecutive naturals, for example, 28533 + ... + 33099.

It is an arithmetic number, because the mean of its divisors is an integer number (5611788).

Almost surely, 2^140736672 is an apocalyptic number.

140736672 is a gapful number since it is divisible by the number (12) 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 140736672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (202024368).

140736672 is an abundant number, since it is smaller than the sum of its proper divisors (263312064).

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

140736672 is a wasteful number, since it uses less digits than its factorization.

140736672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4690 (or 4679 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The square root of 140736672 is about 11863.2487961772. The cubic root of 140736672 is about 520.1585709692.

The spelling of 140736672 in words is "one hundred forty million, seven hundred thirty-six thousand, six hundred seventy-two".