4040343400 has 48 divisors (see below), whose sum is σ = 9486853740. Its totient is φ = 1600128000.

The previous prime is 4040343397. The next prime is 4040343421. The reversal of 4040343400 is 43430404.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 1668068964 + 2372274436 = 40842^2 + 48706^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 79809 + ... + 120208.

Almost surely, 2^4040343400 is an apocalyptic number.

4040343400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4040343400 is an abundant number, since it is smaller than the sum of its proper divisors (5446510340).

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

4040343400 is a wasteful number, since it uses less digits than its factorization.

4040343400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200134 (or 200125 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 22.

The square root of 4040343400 is about 63563.6956131407. The cubic root of 4040343400 is about 1592.7199728667.

Adding to 4040343400 its reverse (43430404), we get a palindrome (4083773804).

The spelling of 4040343400 in words is "four billion, forty million, three hundred forty-three thousand, four hundred".