40244432144 has 40 divisors (see below), whose sum is σ = 89138729280. Its totient is φ = 17242570368.

The previous prime is 40244432113. The next prime is 40244432153. The reversal of 40244432144 is 44123444204.

It is a super-2 number, since 2×40244432144² (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 40244432144.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 345602 + ... + 447134.

It is an arithmetic number, because the mean of its divisors is an integer number (2228468232).

Almost surely, 2^40244432144 is an apocalyptic number.

It is an amenable number.

40244432144 is an abundant number, since it is smaller than the sum of its proper divisors (48894297136).

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

40244432144 is a wasteful number, since it uses less digits than its factorization.

40244432144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105087 (or 105081 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 32.

Adding to 40244432144 its reverse (44123444204), we get a palindrome (84367876348).

The spelling of 40244432144 in words is "forty billion, two hundred forty-four million, four hundred thirty-two thousand, one hundred forty-four".