20341402400 has 144 divisors (see below), whose sum is σ = 56528756928. Its totient is φ = 7075200000.

The previous prime is 20341402397. The next prime is 20341402429. The reversal of 20341402400 is 420414302.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 152150 + ... + 252650.

It is an arithmetic number, because the mean of its divisors is an integer number (392560812).

Almost surely, 2^20341402400 is an apocalyptic number.

20341402400 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 20341402400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28264378464).

20341402400 is an abundant number, since it is smaller than the sum of its proper divisors (36187354528).

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

20341402400 is a wasteful number, since it uses less digits than its factorization.

20341402400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100555 (or 100542 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 20341402400 its reverse (420414302), we get a palindrome (20761816702).

The spelling of 20341402400 in words is "twenty billion, three hundred forty-one million, four hundred two thousand, four hundred".