20435345304 has 32 divisors (see below), whose sum is σ = 55732760640. Its totient is φ = 6192528800.

The previous prime is 20435345299. The next prime is 20435345317. The reversal of 20435345304 is 40354353402.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38703042 + ... + 38703569.

It is an arithmetic number, because the mean of its divisors is an integer number (1741648770).

Almost surely, 2^20435345304 is an apocalyptic number.

20435345304 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20435345304 is an abundant number, since it is smaller than the sum of its proper divisors (35297415336).

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

20435345304 is a wasteful number, since it uses less digits than its factorization.

20435345304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77406631 (or 77406627 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 33.

Adding to 20435345304 its reverse (40354353402), we get a palindrome (60789698706).

The spelling of 20435345304 in words is "twenty billion, four hundred thirty-five million, three hundred forty-five thousand, three hundred four".