40340121144 has 32 divisors (see below), whose sum is σ = 101050830720. Its totient is φ = 13419970016.

The previous prime is 40340121137. The next prime is 40340121167. The reversal of 40340121144 is 44112104304.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1658742 + ... + 1682885.

It is an arithmetic number, because the mean of its divisors is an integer number (3157838460).

Almost surely, 2^40340121144 is an apocalyptic number.

It is an amenable number.

40340121144 is an abundant number, since it is smaller than the sum of its proper divisors (60710709576).

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

40340121144 is a wasteful number, since it uses less digits than its factorization.

40340121144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3342139 (or 3342135 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 40340121144 its reverse (44112104304), we get a palindrome (84452225448).

The spelling of 40340121144 in words is "forty billion, three hundred forty million, one hundred twenty-one thousand, one hundred forty-four".