40238400228 has 96 divisors (see below), whose sum is σ = 101861544960. Its totient is φ = 12289518720.

The previous prime is 40238400217. The next prime is 40238400229. The reversal of 40238400228 is 82200483204.

It is not an unprimeable number, because it can be changed into a prime (40238400229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21975273 + ... + 21977103.

It is an arithmetic number, because the mean of its divisors is an integer number (1061057760).

Almost surely, 2^40238400228 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40238400228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50930772480).

40238400228 is an abundant number, since it is smaller than the sum of its proper divisors (61623144732).

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

40238400228 is a wasteful number, since it uses less digits than its factorization.

40238400228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2817 (or 2815 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 33.

The spelling of 40238400228 in words is "forty billion, two hundred thirty-eight million, four hundred thousand, two hundred twenty-eight".