140331432 has 16 divisors (see below), whose sum is σ = 350828640. Its totient is φ = 46777136.

The previous prime is 140331431. The next prime is 140331461. The reversal of 140331432 is 234133041.

It is a junction number, because it is equal to n+sod(n) for n = 140331399 and 140331408.

It is not an unprimeable number, because it can be changed into a prime (140331431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2923548 + ... + 2923595.

It is an arithmetic number, because the mean of its divisors is an integer number (21926790).

Almost surely, 2^140331432 is an apocalyptic number.

140331432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

140331432 is an abundant number, since it is smaller than the sum of its proper divisors (210497208).

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

140331432 is a wasteful number, since it uses less digits than its factorization.

140331432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5847152 (or 5847148 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 140331432 is about 11846.1568451545. The cubic root of 140331432 is about 519.6588393372.

Adding to 140331432 its reverse (234133041), we get a palindrome (374464473).

The spelling of 140331432 in words is "one hundred forty million, three hundred thirty-one thousand, four hundred thirty-two".