40221330144 has 24 divisors (see below), whose sum is σ = 105580991880. Its totient is φ = 13407110016.

The previous prime is 40221330143. The next prime is 40221330157. The reversal of 40221330144 is 44103312204.

It is a tau number, because it is divible by the number of its divisors (24).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40221330143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 209485999 + ... + 209486190.

It is an arithmetic number, because the mean of its divisors is an integer number (4399207995).

Almost surely, 2^40221330144 is an apocalyptic number.

It is an amenable number.

40221330144 is an abundant number, since it is smaller than the sum of its proper divisors (65359661736).

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

40221330144 is a wasteful number, since it uses less digits than its factorization.

40221330144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418972202 (or 418972194 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 40221330144 its reverse (44103312204), we get a palindrome (84324642348).

The spelling of 40221330144 in words is "forty billion, two hundred twenty-one million, three hundred thirty thousand, one hundred forty-four".