20442315040 has 96 divisors (see below), whose sum is σ = 58441025664. Its totient is φ = 6596505600.

The previous prime is 20442315017. The next prime is 20442315043. The reversal of 20442315040 is 4051324402.

It is a happy number.

It is a super-3 number, since 3×20442315040³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 20442314996 and 20442315014.

It is not an unprimeable number, because it can be changed into a prime (20442315043) 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, 517786 + ... + 555865.

It is an arithmetic number, because the mean of its divisors is an integer number (608760684).

Almost surely, 2^20442315040 is an apocalyptic number.

20442315040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20442315040 is an abundant number, since it is smaller than the sum of its proper divisors (37998710624).

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

20442315040 is a wasteful number, since it uses less digits than its factorization.

20442315040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1073690 (or 1073682 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

Adding to 20442315040 its reverse (4051324402), we get a palindrome (24493639442).

The spelling of 20442315040 in words is "twenty billion, four hundred forty-two million, three hundred fifteen thousand, forty".