40002065024 has 16 divisors (see below), whose sum is σ = 79691614170. Its totient is φ = 20001032448.

The previous prime is 40002065021. The next prime is 40002065039. The reversal of 40002065024 is 42056020004.

It can be written as a sum of positive squares in only one way, i.e., 38638978624 + 1363086400 = 196568^2 + 36920^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is not an unprimeable number, because it can be changed into a prime (40002065021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156257939 + ... + 156258194.

Almost surely, 2^40002065024 is an apocalyptic number.

It is an amenable number.

40002065024 is a deficient number, since it is larger than the sum of its proper divisors (39689549146).

40002065024 is an equidigital number, since it uses as much as digits as its factorization.

40002065024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312516147 (or 312516135 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

Adding to 40002065024 its reverse (42056020004), we get a palindrome (82058085028).

The spelling of 40002065024 in words is "forty billion, two million, sixty-five thousand, twenty-four".