1244432000020 has 48 divisors (see below), whose sum is σ = 2861973632448. Its totient is φ = 450759925760.

The previous prime is 1244432000003. The next prime is 1244432000057. The reversal of 1244432000020 is 200002344421.

It is a happy number.

It is a super-2 number, since 2×1244432000020² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 1244431999955 and 1244432000000.

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, 10948342 + ... + 11061421.

It is an arithmetic number, because the mean of its divisors is an integer number (59624450676).

Almost surely, 2^{1244432000020} is an apocalyptic number.

1244432000020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1244432000020 is an abundant number, since it is smaller than the sum of its proper divisors (1617541632428).

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

1244432000020 is a wasteful number, since it uses less digits than its factorization.

1244432000020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22010040 (or 22010038 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 1244432000020 its reverse (200002344421), we get a palindrome (1444434344441).

The spelling of 1244432000020 in words is "one trillion, two hundred forty-four billion, four hundred thirty-two million, twenty", and thus it is an aban number.