40002246532 has 6 divisors (see below), whose sum is σ = 70003931438. Its totient is φ = 20001123264.

The previous prime is 40002246523. The next prime is 40002246539. The reversal of 40002246532 is 23564220004.

It can be written as a sum of positive squares in only one way, i.e., 37300741956 + 2701504576 = 193134^2 + 51976^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 40002246532.

It is not an unprimeable number, because it can be changed into a prime (40002246539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5000280813 + ... + 5000280820.

Almost surely, 2^40002246532 is an apocalyptic number.

It is an amenable number.

40002246532 is a deficient number, since it is larger than the sum of its proper divisors (30001684906).

40002246532 is a wasteful number, since it uses less digits than its factorization.

40002246532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10000561637 (or 10000561635 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 28.

Adding to 40002246532 its reverse (23564220004), we get a palindrome (63566466536).

The spelling of 40002246532 in words is "forty billion, two million, two hundred forty-six thousand, five hundred thirty-two".