40120350032 has 80 divisors (see below), whose sum is σ = 90117482112. Its totient is φ = 16948224000.

The previous prime is 40120350019. The next prime is 40120350059. The reversal of 40120350032 is 23005302104.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 40120349986 and 40120350013.

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, 2719508 + ... + 2734220.

Almost surely, 2^40120350032 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40120350032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45058741056).

40120350032 is an abundant number, since it is smaller than the sum of its proper divisors (49997132080).

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

40120350032 is a wasteful number, since it uses less digits than its factorization.

40120350032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15076 (or 15070 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

Adding to 40120350032 its reverse (23005302104), we get a palindrome (63125652136).

The spelling of 40120350032 in words is "forty billion, one hundred twenty million, three hundred fifty thousand, thirty-two".