40406513140 has 48 divisors (see below), whose sum is σ = 97001622144. Its totient is φ = 13849948800.

The previous prime is 40406513129. The next prime is 40406513141. The reversal of 40406513140 is 4131560404.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 40406513099 and 40406513108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40406513141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 513630 + ... + 587050.

It is an arithmetic number, because the mean of its divisors is an integer number (2020867128).

Almost surely, 2^40406513140 is an apocalyptic number.

It is an amenable number.

40406513140 is an abundant number, since it is smaller than the sum of its proper divisors (56595109004).

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

40406513140 is a wasteful number, since it uses less digits than its factorization.

40406513140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77368 (or 77366 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The spelling of 40406513140 in words is "forty billion, four hundred six million, five hundred thirteen thousand, one hundred forty".