140331340 has 24 divisors (see below), whose sum is σ = 310206960. Its totient is φ = 53178048.

The previous prime is 140331307. The next prime is 140331341. The reversal of 140331340 is 43133041.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is not an unprimeable number, because it can be changed into a prime (140331341) 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, 184267 + ... + 185026.

It is an arithmetic number, because the mean of its divisors is an integer number (12925290).

Almost surely, 2^140331340 is an apocalyptic number.

140331340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140331340 is an abundant number, since it is smaller than the sum of its proper divisors (169875620).

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

140331340 is a wasteful number, since it uses less digits than its factorization.

140331340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369321 (or 369319 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 140331340 is about 11846.1529620379. The cubic root of 140331340 is about 519.6587257760.

Adding to 140331340 its reverse (43133041), we get a palindrome (183464381).

The spelling of 140331340 in words is "one hundred forty million, three hundred thirty-one thousand, three hundred forty".