2043340040 has 64 divisors (see below), whose sum is σ = 5366131200. Its totient is φ = 685663488.

The previous prime is 2043340031. The next prime is 2043340043. The reversal of 2043340040 is 400433402.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 2043339994 and 2043340021.

It is not an unprimeable number, because it can be changed into a prime (2043340043) 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, 64475 + ... + 90794.

It is an arithmetic number, because the mean of its divisors is an integer number (83845800).

Almost surely, 2^2043340040 is an apocalyptic number.

2043340040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2043340040 is an abundant number, since it is smaller than the sum of its proper divisors (3322791160).

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

2043340040 is a wasteful number, since it uses less digits than its factorization.

2043340040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155334 (or 155330 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 2043340040 is about 45203.3189046999. The cubic root of 2043340040 is about 1268.9569297273.

Adding to 2043340040 its reverse (400433402), we get a palindrome (2443773442).

The spelling of 2043340040 in words is "two billion, forty-three million, three hundred forty thousand, forty".