40010321032 has 64 divisors (see below), whose sum is σ = 86860563840. Its totient is φ = 17075788800.

The previous prime is 40010320991. The next prime is 40010321033. The reversal of 40010321032 is 23012301004.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 40010320997 and 40010321015.

It is not an unprimeable number, because it can be changed into a prime (40010321033) by changing a digit.

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, 598053 + ... + 661579.

It is an arithmetic number, because the mean of its divisors is an integer number (1357196310).

Almost surely, 2^40010321032 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 40010321032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43430281920).

40010321032 is an abundant number, since it is smaller than the sum of its proper divisors (46850242808).

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

40010321032 is a wasteful number, since it uses less digits than its factorization.

40010321032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63982 (or 63978 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 40010321032 its reverse (23012301004), we get a palindrome (63022622036).

The spelling of 40010321032 in words is "forty billion, ten million, three hundred twenty-one thousand, thirty-two".