20243401400 has 24 divisors (see below), whose sum is σ = 47065908720. Its totient is φ = 8097360480.

The previous prime is 20243401397. The next prime is 20243401403. The reversal of 20243401400 is 410434202.

It is an interprime number because it is at equal distance from previous prime (20243401397) and next prime (20243401403).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20243401403) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 50608304 + ... + 50608703.

It is an arithmetic number, because the mean of its divisors is an integer number (1961079530).

Almost surely, 2^20243401400 is an apocalyptic number.

20243401400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20243401400 is an abundant number, since it is smaller than the sum of its proper divisors (26822507320).

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

20243401400 is a wasteful number, since it uses less digits than its factorization.

20243401400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101217023 (or 101217014 counting only the distinct ones).

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

Adding to 20243401400 its reverse (410434202), we get a palindrome (20653835602).

The spelling of 20243401400 in words is "twenty billion, two hundred forty-three million, four hundred one thousand, four hundred".