3142521440 has 24 divisors (see below), whose sum is σ = 7424207280. Its totient is φ = 1257008512.

The previous prime is 3142521439. The next prime is 3142521443. The reversal of 3142521440 is 441252413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3142521443) 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, 9820220 + ... + 9820539.

It is an arithmetic number, because the mean of its divisors is an integer number (309341970).

Almost surely, 2^3142521440 is an apocalyptic number.

It is an amenable number.

3142521440 is an abundant number, since it is smaller than the sum of its proper divisors (4281685840).

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

3142521440 is a wasteful number, since it uses less digits than its factorization.

3142521440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19640774 (or 19640766 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 3142521440 is about 56058.1969028616. The cubic root of 3142521440 is about 1464.7362049148.

Adding to 3142521440 its reverse (441252413), we get a palindrome (3583773853).

The spelling of 3142521440 in words is "three billion, one hundred forty-two million, five hundred twenty-one thousand, four hundred forty".