40400042200 has 96 divisors (see below), whose sum is σ = 107430624000. Its totient is φ = 13840871040.

The previous prime is 40400042167. The next prime is 40400042219. The reversal of 40400042200 is 224000404.

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, 1948287 + ... + 1968913.

It is an arithmetic number, because the mean of its divisors is an integer number (1119069000).

Almost surely, 2^40400042200 is an apocalyptic number.

40400042200 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40400042200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53715312000).

40400042200 is an abundant number, since it is smaller than the sum of its proper divisors (67030581800).

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

40400042200 is a wasteful number, since it uses less digits than its factorization.

40400042200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22049 (or 22040 counting only the distinct ones).

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

Adding to 40400042200 its reverse (224000404), we get a palindrome (40624042604).

The spelling of 40400042200 in words is "forty billion, four hundred million, forty-two thousand, two hundred".