20415440600 has 48 divisors (see below), whose sum is σ = 48997072320. Its totient is φ = 7902748800.

The previous prime is 20415440599. The next prime is 20415440653. The reversal of 20415440600 is 604451402.

It is a self number, because there is not a number n which added to its sum of digits gives 20415440600.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1640207 + ... + 1652606.

It is an arithmetic number, because the mean of its divisors is an integer number (1020772340).

Almost surely, 2^20415440600 is an apocalyptic number.

20415440600 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20415440600 is an abundant number, since it is smaller than the sum of its proper divisors (28581631720).

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

20415440600 is a wasteful number, since it uses less digits than its factorization.

20415440600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3292860 (or 3292851 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The spelling of 20415440600 in words is "twenty billion, four hundred fifteen million, four hundred forty thousand, six hundred".