40002246820 has 24 divisors (see below), whose sum is σ = 85258522944. Its totient is φ = 15762078816.

The previous prime is 40002246799. The next prime is 40002246821. The reversal of 40002246820 is 2864220004.

It is a super-2 number, since 2×40002246820² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40002246821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14924872 + ... + 14927551.

It is an arithmetic number, because the mean of its divisors is an integer number (3552438456).

Almost surely, 2^40002246820 is an apocalyptic number.

It is an amenable number.

40002246820 is an abundant number, since it is smaller than the sum of its proper divisors (45256276124).

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

40002246820 is a wasteful number, since it uses less digits than its factorization.

40002246820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29852499 (or 29852497 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 40002246820 its reverse (2864220004), we get a palindrome (42866466824).

The spelling of 40002246820 in words is "forty billion, two million, two hundred forty-six thousand, eight hundred twenty".