40323122020 has 48 divisors (see below), whose sum is σ = 89733672000. Its totient is φ = 15177767040.

The previous prime is 40323121973. The next prime is 40323122023. The reversal of 40323122020 is 2022132304.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is not an unprimeable number, because it can be changed into a prime (40323122023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 299466 + ... + 412705.

It is an arithmetic number, because the mean of its divisors is an integer number (1869451500).

Almost surely, 2^40323122020 is an apocalyptic number.

It is an amenable number.

40323122020 is an abundant number, since it is smaller than the sum of its proper divisors (49410549980).

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

40323122020 is a wasteful number, since it uses less digits than its factorization.

40323122020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 712348 (or 712346 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 40323122020 its reverse (2022132304), we get a palindrome (42345254324).

The spelling of 40323122020 in words is "forty billion, three hundred twenty-three million, one hundred twenty-two thousand, twenty".