2043315540 has 72 divisors (see below), whose sum is σ = 7083498240. Its totient is φ = 467043264.

The previous prime is 2043315539. The next prime is 2043315551. The reversal of 2043315540 is 455133402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 809580 + ... + 812099.

It is an arithmetic number, because the mean of its divisors is an integer number (98381920).

Almost surely, 2^2043315540 is an apocalyptic number.

2043315540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2043315540 is an abundant number, since it is smaller than the sum of its proper divisors (5040182700).

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

2043315540 is a wasteful number, since it uses less digits than its factorization.

2043315540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1621701 (or 1621696 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 2043315540 is about 45203.0479060870. The cubic root of 2043315540 is about 1268.9518580361.

Adding to 2043315540 its reverse (455133402), we get a palindrome (2498448942).

The spelling of 2043315540 in words is "two billion, forty-three million, three hundred fifteen thousand, five hundred forty".