40135531040 has 96 divisors (see below), whose sum is σ = 103723732224. Its totient is φ = 14554736640.

The previous prime is 40135531021. The next prime is 40135531067. The reversal of 40135531040 is 4013553104.

It is a super-2 number, since 2×40135531040² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 614852 + ... + 676988.

It is an arithmetic number, because the mean of its divisors is an integer number (1080455544).

Almost surely, 2^40135531040 is an apocalyptic number.

40135531040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40135531040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51861866112).

40135531040 is an abundant number, since it is smaller than the sum of its proper divisors (63588201184).

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

40135531040 is a wasteful number, since it uses less digits than its factorization.

40135531040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62530 (or 62522 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

It can be divided in two parts, 40135 and 531040, that added together give a palindrome (571175).

The spelling of 40135531040 in words is "forty billion, one hundred thirty-five million, five hundred thirty-one thousand, forty".