40135321024 has 28 divisors (see below), whose sum is σ = 81146242584. Its totient is φ = 19689023744.

The previous prime is 40135321019. The next prime is 40135321069. The reversal of 40135321024 is 42012353104.

It is a super-2 number, since 2×40135321024² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40135321024.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5912782 + ... + 5919565.

Almost surely, 2^40135321024 is an apocalyptic number.

It is an amenable number.

40135321024 is an abundant number, since it is smaller than the sum of its proper divisors (41010921560).

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

40135321024 is a wasteful number, since it uses less digits than its factorization.

40135321024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11832412 (or 11832402 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 40135321024 its reverse (42012353104), we get a palindrome (82147674128).

The spelling of 40135321024 in words is "forty billion, one hundred thirty-five million, three hundred twenty-one thousand, twenty-four".