20035406400 has 84 divisors (see below), whose sum is σ = 65732844912. Its totient is φ = 5342773760.

The previous prime is 20035406383. The next prime is 20035406441. The reversal of 20035406400 is 460453002.

It is a super-2 number, since 2×20035406400² (a number of 21 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2082222 + ... + 2091821.

It is an arithmetic number, because the mean of its divisors is an integer number (782533868).

Almost surely, 2^20035406400 is an apocalyptic number.

20035406400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20035406400 is an abundant number, since it is smaller than the sum of its proper divisors (45697438512).

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

20035406400 is a wasteful number, since it uses less digits than its factorization.

20035406400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4174068 (or 4174053 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

Adding to 20035406400 its reverse (460453002), we get a palindrome (20495859402).

The spelling of 20035406400 in words is "twenty billion, thirty-five million, four hundred six thousand, four hundred".