20413433400 has 192 divisors, whose sum is σ = 67380374880. Its totient is φ = 5094604800.

The previous prime is 20413433323. The next prime is 20413433431. The reversal of 20413433400 is 433431402.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1840672 + ... + 1851728.

Almost surely, 2^20413433400 is an apocalyptic number.

20413433400 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 20413433400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33690187440).

20413433400 is an abundant number, since it is smaller than the sum of its proper divisors (46966941480).

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

20413433400 is a wasteful number, since it uses less digits than its factorization.

20413433400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11274 (or 11265 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 20413433400 its reverse (433431402), we get a palindrome (20846864802).

The spelling of 20413433400 in words is "twenty billion, four hundred thirteen million, four hundred thirty-three thousand, four hundred".