20412400000 has 96 divisors (see below), whose sum is σ = 50829402960. Its totient is φ = 8164800000.

The previous prime is 20412399989. The next prime is 20412400003. The reversal of 20412400000 is 421402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20412400003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 374485 + ... + 425515.

Almost surely, 2^20412400000 is an apocalyptic number.

20412400000 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 20412400000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25414701480).

20412400000 is an abundant number, since it is smaller than the sum of its proper divisors (30417002960).

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

20412400000 is an frugal number, since it uses more digits than its factorization.

20412400000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51070 (or 51038 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

Adding to 20412400000 its reverse (421402), we get a palindrome (20412821402).

The spelling of 20412400000 in words is "twenty billion, four hundred twelve million, four hundred thousand".