40220040000 has 280 divisors, whose sum is σ = 151976701888. Its totient is φ = 9192960000.

The previous prime is 40220039983. The next prime is 40220040001. The reversal of 40220040000 is 4002204.

It is a tau number, because it is divible by the number of its divisors (280).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40220040001) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 816060 + ... + 863940.

Almost surely, 2^40220040000 is an apocalyptic number.

40220040000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40220040000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75988350944).

40220040000 is an abundant number, since it is smaller than the sum of its proper divisors (111756661888).

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

40220040000 is an equidigital number, since it uses as much as digits as its factorization.

40220040000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47923 (or 47898 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 12.

Adding to 40220040000 its reverse (4002204), we get a palindrome (40224042204).

The spelling of 40220040000 in words is "forty billion, two hundred twenty million, forty thousand".