20023246320 has 240 divisors, whose sum is σ = 78770994048. Its totient is φ = 4160647680.

The previous prime is 20023246297. The next prime is 20023246337. The reversal of 20023246320 is 2364232002.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 51967 + ... + 206753.

Almost surely, 2^20023246320 is an apocalyptic number.

20023246320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20023246320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39385497024).

20023246320 is an abundant number, since it is smaller than the sum of its proper divisors (58747747728).

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

20023246320 is a wasteful number, since it uses less digits than its factorization.

20023246320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154828 (or 154815 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 20023246320 its reverse (2364232002), we get a palindrome (22387478322).

The spelling of 20023246320 in words is "twenty billion, twenty-three million, two hundred forty-six thousand, three hundred twenty".