20402332000 has 192 divisors, whose sum is σ = 51368675904. Its totient is φ = 7961702400.

The previous prime is 20402331997. The next prime is 20402332057. The reversal of 20402332000 is 23320402.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31243674 + ... + 31244326.

It is an arithmetic number, because the mean of its divisors is an integer number (267545187).

Almost surely, 2^20402332000 is an apocalyptic number.

20402332000 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 20402332000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25684337952).

20402332000 is an abundant number, since it is smaller than the sum of its proper divisors (30966343904).

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

20402332000 is a wasteful number, since it uses less digits than its factorization.

20402332000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 858 (or 840 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 16.

Adding to 20402332000 its reverse (23320402), we get a palindrome (20425652402).

The spelling of 20402332000 in words is "twenty billion, four hundred two million, three hundred thirty-two thousand".