40125235040 has 96 divisors (see below), whose sum is σ = 103545177120. Its totient is φ = 14572441600.

The previous prime is 40125235039. The next prime is 40125235057. The reversal of 40125235040 is 4053252104.

It is a happy number.

It is a super-2 number, since 2×40125235040² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1409750 + ... + 1437930.

It is an arithmetic number, because the mean of its divisors is an integer number (1078595595).

Almost surely, 2^40125235040 is an apocalyptic number.

40125235040 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 40125235040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51772588560).

40125235040 is an abundant number, since it is smaller than the sum of its proper divisors (63419942080).

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

40125235040 is a wasteful number, since it uses less digits than its factorization.

40125235040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29016 (or 29008 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

Adding to 40125235040 its reverse (4053252104), we get a palindrome (44178487144).

The spelling of 40125235040 in words is "forty billion, one hundred twenty-five million, two hundred thirty-five thousand, forty".