2043404240 has 40 divisors (see below), whose sum is σ = 4753624320. Its totient is φ = 816895616.

The previous prime is 2043404239. The next prime is 2043404261. The reversal of 2043404240 is 424043402.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 156857 + ... + 169383.

It is an arithmetic number, because the mean of its divisors is an integer number (118840608).

Almost surely, 2^2043404240 is an apocalyptic number.

2043404240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2043404240 is an abundant number, since it is smaller than the sum of its proper divisors (2710220080).

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

2043404240 is a wasteful number, since it uses less digits than its factorization.

2043404240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14579 (or 14573 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 23.

The square root of 2043404240 is about 45204.0290239709. The cubic root of 2043404240 is about 1268.9702194360.

Adding to 2043404240 its reverse (424043402), we get a palindrome (2467447642).

The spelling of 2043404240 in words is "two billion, forty-three million, four hundred four thousand, two hundred forty".