40154430140 has 96 divisors (see below), whose sum is σ = 96995888640. Its totient is φ = 13809657600.

The previous prime is 40154430139. The next prime is 40154430149. The reversal of 40154430140 is 4103445104.

It is a happy number.

It is a super-2 number, since 2×40154430140² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40154430149) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2554505 + ... + 2570175.

It is an arithmetic number, because the mean of its divisors is an integer number (1010373840).

Almost surely, 2^40154430140 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 40154430140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48497944320).

40154430140 is an abundant number, since it is smaller than the sum of its proper divisors (56841458500).

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

40154430140 is a wasteful number, since it uses less digits than its factorization.

40154430140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16323 (or 16321 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

Adding to 40154430140 its reverse (4103445104), we get a palindrome (44257875244).

The spelling of 40154430140 in words is "forty billion, one hundred fifty-four million, four hundred thirty thousand, one hundred forty".