40244212140 has 96 divisors (see below), whose sum is σ = 123083622144. Its totient is φ = 9743804160.

The previous prime is 40244212061. The next prime is 40244212159. The reversal of 40244212140 is 4121244204.

It is a super-2 number, since 2×40244212140² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40244212140.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 487767 + ... + 564273.

It is an arithmetic number, because the mean of its divisors is an integer number (1282121064).

Almost surely, 2^40244212140 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 40244212140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61541811072).

40244212140 is an abundant number, since it is smaller than the sum of its proper divisors (82839410004).

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

40244212140 is a wasteful number, since it uses less digits than its factorization.

40244212140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77327 (or 77325 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

Adding to 40244212140 its reverse (4121244204), we get a palindrome (44365456344).

The spelling of 40244212140 in words is "forty billion, two hundred forty-four million, two hundred twelve thousand, one hundred forty".