3141021440 has 36 divisors (see below), whose sum is σ = 7523730984. Its totient is φ = 1256408064.

The previous prime is 3141021419. The next prime is 3141021449. The reversal of 3141021440 is 441201413.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3141021449) 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, 1225682 + ... + 1228241.

Almost surely, 2^3141021440 is an apocalyptic number.

It is an amenable number.

3141021440 is an abundant number, since it is smaller than the sum of its proper divisors (4382709544).

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

3141021440 is an equidigital number, since it uses as much as digits as its factorization.

3141021440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2453944 (or 2453930 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 3141021440 is about 56044.8163526298. The cubic root of 3141021440 is about 1464.5031167170.

Adding to 3141021440 its reverse (441201413), we get a palindrome (3582222853).

The spelling of 3141021440 in words is "three billion, one hundred forty-one million, twenty-one thousand, four hundred forty".