40440000400 has 60 divisors (see below), whose sum is σ = 97922240512. Its totient is φ = 16048609920.

The previous prime is 40440000353. The next prime is 40440000409. The reversal of 40440000400 is 400004404.

40440000400 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (40440000409) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 347232 + ... + 448831.

Almost surely, 2^40440000400 is an apocalyptic number.

40440000400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40440000400 is an abundant number, since it is smaller than the sum of its proper divisors (57482240112).

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

40440000400 is a wasteful number, since it uses less digits than its factorization.

40440000400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 796208 (or 796197 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

Adding to 40440000400 its reverse (400004404), we get a palindrome (40840004804).

The spelling of 40440000400 in words is "forty billion, four hundred forty million, four hundred", and thus it is an aban number.