140331042 has 32 divisors (see below), whose sum is σ = 315706560. Its totient is φ = 46775556.

The previous prime is 140331041. The next prime is 140331083. The reversal of 140331042 is 240133041.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (140331041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11668 + ... + 20415.

It is an arithmetic number, because the mean of its divisors is an integer number (9865830).

Almost surely, 2^140331042 is an apocalyptic number.

140331042 is an abundant number, since it is smaller than the sum of its proper divisors (175375518).

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

140331042 is an frugal number, since it uses more digits than its factorization.

140331042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32106 (or 32088 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 140331042 is about 11846.1403841082. The cubic root of 140331042 is about 519.6583579361.

Adding to 140331042 its reverse (240133041), we get a palindrome (380464083).

The spelling of 140331042 in words is "one hundred forty million, three hundred thirty-one thousand, forty-two".