40022020020 has 48 divisors (see below), whose sum is σ = 112592789568. Its totient is φ = 10621954560.

The previous prime is 40022020001. The next prime is 40022020037. The reversal of 40022020020 is 2002022004.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 40022019978 and 40022020005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1567989 + ... + 1593308.

It is an arithmetic number, because the mean of its divisors is an integer number (2345683116).

Almost surely, 2^40022020020 is an apocalyptic number.

It is an amenable number.

40022020020 is an abundant number, since it is smaller than the sum of its proper divisors (72570769548).

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

40022020020 is a wasteful number, since it uses less digits than its factorization.

40022020020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3161520 (or 3161518 counting only the distinct ones).

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

Adding to 40022020020 its reverse (2002022004), we get a palindrome (42024042024).

The spelling of 40022020020 in words is "forty billion, twenty-two million, twenty thousand, twenty".