140320432 has 40 divisors (see below), whose sum is σ = 314662400. Its totient is φ = 59372352.

The previous prime is 140320429. The next prime is 140320471. The reversal of 140320432 is 234023041.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 919 + ... + 16777.

It is an arithmetic number, because the mean of its divisors is an integer number (7866560).

Almost surely, 2^140320432 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 140320432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (157331200).

140320432 is an abundant number, since it is smaller than the sum of its proper divisors (174341968).

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

140320432 is a wasteful number, since it uses less digits than its factorization.

140320432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15953 (or 15947 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 140320432 is about 11845.6925504590. The cubic root of 140320432 is about 519.6452610141.

Adding to 140320432 its reverse (234023041), we get a palindrome (374343473).

The spelling of 140320432 in words is "one hundred forty million, three hundred twenty thousand, four hundred thirty-two".