40125535320 has 128 divisors (see below), whose sum is σ = 136459411200. Its totient is φ = 9357202944.

The previous prime is 40125535309. The next prime is 40125535327. The reversal of 40125535320 is 2353552104.

It is a super-2 number, since 2×40125535320² (a number of 22 digits) contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40125535327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 647242 + ... + 706521.

It is an arithmetic number, because the mean of its divisors is an integer number (1066089150).

Almost surely, 2^40125535320 is an apocalyptic number.

40125535320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40125535320 is an abundant number, since it is smaller than the sum of its proper divisors (96333875880).

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

40125535320 is a wasteful number, since it uses less digits than its factorization.

40125535320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1353809 (or 1353805 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 30.

The spelling of 40125535320 in words is "forty billion, one hundred twenty-five million, five hundred thirty-five thousand, three hundred twenty".