40401146140 has 12 divisors (see below), whose sum is σ = 84842406936. Its totient is φ = 16160458448.

The previous prime is 40401146113. The next prime is 40401146143. The reversal of 40401146140 is 4164110404.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40401146143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1010028634 + ... + 1010028673.

It is an arithmetic number, because the mean of its divisors is an integer number (7070200578).

Almost surely, 2^40401146140 is an apocalyptic number.

It is an amenable number.

40401146140 is an abundant number, since it is smaller than the sum of its proper divisors (44441260796).

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

40401146140 is a wasteful number, since it uses less digits than its factorization.

40401146140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2020057316 (or 2020057314 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 40401146140 its reverse (4164110404), we get a palindrome (44565256544).

The spelling of 40401146140 in words is "forty billion, four hundred one million, one hundred forty-six thousand, one hundred forty".