40403130144 has 144 divisors (see below), whose sum is σ = 116793381600. Its totient is φ = 12220735488.

The previous prime is 40403130143. The next prime is 40403130151. The reversal of 40403130144 is 44103130404.

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

It is not an unprimeable number, because it can be changed into a prime (40403130143) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 936112 + ... + 978320.

It is an arithmetic number, because the mean of its divisors is an integer number (811065150).

Almost surely, 2^40403130144 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 40403130144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58396690800).

40403130144 is an abundant number, since it is smaller than the sum of its proper divisors (76390251456).

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

40403130144 is a wasteful number, since it uses less digits than its factorization.

40403130144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42307 (or 42286 counting only the distinct ones).

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

Adding to 40403130144 its reverse (44103130404), we get a palindrome (84506260548).

The spelling of 40403130144 in words is "forty billion, four hundred three million, one hundred thirty thousand, one hundred forty-four".