140403432 has 32 divisors (see below), whose sum is σ = 378010080. Its totient is φ = 43200960.

The previous prime is 140403427. The next prime is 140403457. The reversal of 140403432 is 234304041.

It is a junction number, because it is equal to n+sod(n) for n = 140403399 and 140403408.

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, 224694 + ... + 225317.

It is an arithmetic number, because the mean of its divisors is an integer number (11812815).

Almost surely, 2^140403432 is an apocalyptic number.

140403432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

140403432 is an abundant number, since it is smaller than the sum of its proper divisors (237606648).

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

140403432 is a wasteful number, since it uses less digits than its factorization.

140403432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450033 (or 450029 counting only the distinct ones).

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

The square root of 140403432 is about 11849.1954157234. The cubic root of 140403432 is about 519.7476981168.

Adding to 140403432 its reverse (234304041), we get a palindrome (374707473).

The spelling of 140403432 in words is "one hundred forty million, four hundred three thousand, four hundred thirty-two".