20435015404 has 24 divisors (see below), whose sum is σ = 36178059456. Its totient is φ = 10099050000.

The previous prime is 20435015353. The next prime is 20435015411. The reversal of 20435015404 is 40451053402.

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, 53839 + ... + 209209.

It is an arithmetic number, because the mean of its divisors is an integer number (1507419144).

Almost surely, 2^20435015404 is an apocalyptic number.

It is an amenable number.

20435015404 is a deficient number, since it is larger than the sum of its proper divisors (15743044052).

20435015404 is a wasteful number, since it uses less digits than its factorization.

20435015404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155757 (or 155755 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

Adding to 20435015404 its reverse (40451053402), we get a palindrome (60886068806).

The spelling of 20435015404 in words is "twenty billion, four hundred thirty-five million, fifteen thousand, four hundred four".