140140432 has 10 divisors (see below), whose sum is σ = 271522118. Its totient is φ = 70070208.

The previous prime is 140140411. The next prime is 140140463. The reversal of 140140432 is 234041041.

140140432 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 78925456 + 61214976 = 8884^2 + 7824^2 .

It is a super-2 number, since 2×140140432² = 39278681362293248, which contains 22 as substring.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 4379373 + ... + 4379404.

Almost surely, 2^140140432 is an apocalyptic number.

It is an amenable number.

140140432 is a deficient number, since it is larger than the sum of its proper divisors (131381686).

140140432 is an equidigital number, since it uses as much as digits as its factorization.

140140432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8758785 (or 8758779 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 140140432 is about 11838.0924138984. The cubic root of 140140432 is about 519.4229693883.

Adding to 140140432 its reverse (234041041), we get a palindrome (374181473).

The spelling of 140140432 in words is "one hundred forty million, one hundred forty thousand, four hundred thirty-two".