3231340140 has 48 divisors (see below), whose sum is σ = 10340289792. Its totient is φ = 738591936.

The previous prime is 3231340139. The next prime is 3231340141. The reversal of 3231340140 is 410431323.

It is an interprime number because it is at equal distance from previous prime (3231340139) and next prime (3231340141).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (3231340141) 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, 3846414 + ... + 3847253.

It is an arithmetic number, because the mean of its divisors is an integer number (215422704).

Almost surely, 2^3231340140 is an apocalyptic number.

3231340140 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3231340140 is an abundant number, since it is smaller than the sum of its proper divisors (7108949652).

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

3231340140 is a wasteful number, since it uses less digits than its factorization.

3231340140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7693686 (or 7693684 counting only the distinct ones).

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

The square root of 3231340140 is about 56844.8778695143. The cubic root of 3231340140 is about 1478.4077318032.

Adding to 3231340140 its reverse (410431323), we get a palindrome (3641771463).

The spelling of 3231340140 in words is "three billion, two hundred thirty-one million, three hundred forty thousand, one hundred forty".