20464026800 has 180 divisors, whose sum is σ = 58524185016. Its totient is φ = 6852787200.

The previous prime is 20464026769. The next prime is 20464026839. The reversal of 20464026800 is 862046402.

It is a happy number.

It is a super-2 number, since 2×20464026800² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 830660 + ... + 854940.

Almost surely, 2^20464026800 is an apocalyptic number.

20464026800 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 20464026800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29262092508).

20464026800 is an abundant number, since it is smaller than the sum of its proper divisors (38060158216).

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

20464026800 is a wasteful number, since it uses less digits than its factorization.

20464026800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24356 (or 24338 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 32.

The spelling of 20464026800 in words is "twenty billion, four hundred sixty-four million, twenty-six thousand, eight hundred".