40235321028 has 96 divisors (see below), whose sum is σ = 108729397504. Its totient is φ = 11342757888.

The previous prime is 40235321017. The next prime is 40235321029. The reversal of 40235321028 is 82012353204.

It is a junction number, because it is equal to n+sod(n) for n = 40235320986 and 40235321004.

It is not an unprimeable number, because it can be changed into a prime (40235321029) 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, 2738550 + ... + 2753202.

Almost surely, 2^40235321028 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 40235321028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54364698752).

40235321028 is an abundant number, since it is smaller than the sum of its proper divisors (68494076476).

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

40235321028 is a wasteful number, since it uses less digits than its factorization.

40235321028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15101 (or 15099 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The spelling of 40235321028 in words is "forty billion, two hundred thirty-five million, three hundred twenty-one thousand, twenty-eight".