140304432 has 40 divisors (see below), whose sum is σ = 367871296. Its totient is φ = 46069056.

The previous prime is 140304431. The next prime is 140304443. The reversal of 140304432 is 234403041.

It is a junction number, because it is equal to n+sod(n) for n = 140304399 and 140304408.

It is not an unprimeable number, because it can be changed into a prime (140304431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18598 + ... + 25029.

Almost surely, 2^140304432 is an apocalyptic number.

140304432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

140304432 is an abundant number, since it is smaller than the sum of its proper divisors (227566864).

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

140304432 is a wasteful number, since it uses less digits than its factorization.

140304432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43705 (or 43699 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 140304432 is about 11845.0171802324. The cubic root of 140304432 is about 519.6255094591.

Adding to 140304432 its reverse (234403041), we get a palindrome (374707473).

The spelling of 140304432 in words is "one hundred forty million, three hundred four thousand, four hundred thirty-two".