40244040040 has 64 divisors (see below), whose sum is σ = 93882447360. Its totient is φ = 15509602560.

The previous prime is 40244040017. The next prime is 40244040059. The reversal of 40244040040 is 4004044204.

It is a super-2 number, since 2×40244040040² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40244039993 and 40244040020.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 209994 + ... + 352966.

It is an arithmetic number, because the mean of its divisors is an integer number (1466913240).

Almost surely, 2^40244040040 is an apocalyptic number.

40244040040 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 40244040040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46941223680).

40244040040 is an abundant number, since it is smaller than the sum of its proper divisors (53638407320).

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

40244040040 is a wasteful number, since it uses less digits than its factorization.

40244040040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143242 (or 143238 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

Adding to 40244040040 its reverse (4004044204), we get a palindrome (44248084244).

The spelling of 40244040040 in words is "forty billion, two hundred forty-four million, forty thousand, forty".