40440220000 has 60 divisors (see below), whose sum is σ = 99489056436. Its totient is φ = 16176080000.

The previous prime is 40440219997. The next prime is 40440220013. The reversal of 40440220000 is 2204404.

It is a super-2 number, since 2×40440220000² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 991006 + ... + 1031005.

Almost surely, 2^40440220000 is an apocalyptic number.

40440220000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40440220000 is an abundant number, since it is smaller than the sum of its proper divisors (59048836436).

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

40440220000 is an equidigital number, since it uses as much as digits as its factorization.

40440220000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2022041 (or 2022018 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

Adding to 40440220000 its reverse (2204404), we get a palindrome (40442424404).

The spelling of 40440220000 in words is "forty billion, four hundred forty million, two hundred twenty thousand".