140446944 has 144 divisors (see below), whose sum is σ = 446269824. Its totient is φ = 41529600.

The previous prime is 140446939. The next prime is 140446973. The reversal of 140446944 is 449644041.

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 junction number, because it is equal to n+sod(n) for n = 140446899 and 140446908.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 135709 + ... + 136739.

It is an arithmetic number, because the mean of its divisors is an integer number (3099096).

Almost surely, 2^140446944 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 140446944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (223134912).

140446944 is an abundant number, since it is smaller than the sum of its proper divisors (305822880).

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

140446944 is a wasteful number, since it uses less digits than its factorization.

140446944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1101 (or 1090 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 36.

The square root of 140446944 is about 11851.0313475241. The cubic root of 140446944 is about 519.8013837134.

The spelling of 140446944 in words is "one hundred forty million, four hundred forty-six thousand, nine hundred forty-four".