140365944 has 24 divisors (see below), whose sum is σ = 380157960. Its totient is φ = 46788624.

The previous prime is 140365943. The next prime is 140365997. The reversal of 140365944 is 449563041.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×140365944² = 39405196470022272, which contains 22 as substring.

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 = 140365899 and 140365908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140365943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 974692 + ... + 974835.

It is an arithmetic number, because the mean of its divisors is an integer number (15839915).

Almost surely, 2^140365944 is an apocalyptic number.

It is an amenable number.

140365944 is an abundant number, since it is smaller than the sum of its proper divisors (239792016).

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

140365944 is a wasteful number, since it uses less digits than its factorization.

140365944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1949539 (or 1949532 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 140365944 is about 11847.6134305606. The cubic root of 140365944 is about 519.7014361040.

The spelling of 140365944 in words is "one hundred forty million, three hundred sixty-five thousand, nine hundred forty-four".