20450241400 has 96 divisors (see below), whose sum is σ = 47931820560. Its totient is φ = 8114135040.

The previous prime is 20450241353. The next prime is 20450241419. The reversal of 20450241400 is 414205402.

It is a happy number.

It is a congruent number.

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, 20187294 + ... + 20188306.

Almost surely, 2^20450241400 is an apocalyptic number.

20450241400 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 20450241400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23965910280).

20450241400 is an abundant number, since it is smaller than the sum of its proper divisors (27481579160).

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

20450241400 is a wasteful number, since it uses less digits than its factorization.

20450241400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1745 (or 1736 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 22.

Adding to 20450241400 its reverse (414205402), we get a palindrome (20864446802).

The spelling of 20450241400 in words is "twenty billion, four hundred fifty million, two hundred forty-one thousand, four hundred".