40453144140 has 48 divisors (see below), whose sum is σ = 116330128992. Its totient is φ = 10495950336.

The previous prime is 40453144129. The next prime is 40453144141. The reversal of 40453144140 is 4144135404.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 40453144098 and 40453144107.

It is not an unprimeable number, because it can be changed into a prime (40453144141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9108849 + ... + 9113288.

It is an arithmetic number, because the mean of its divisors is an integer number (2423544354).

Almost surely, 2^40453144140 is an apocalyptic number.

It is an amenable number.

40453144140 is an abundant number, since it is smaller than the sum of its proper divisors (75876984852).

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

40453144140 is a wasteful number, since it uses less digits than its factorization.

40453144140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18222186 (or 18222184 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 30.

Adding to 40453144140 its reverse (4144135404), we get a palindrome (44597279544).

The spelling of 40453144140 in words is "forty billion, four hundred fifty-three million, one hundred forty-four thousand, one hundred forty".