2100536406 has 24 divisors (see below), whose sum is σ = 4559884680. Its totient is φ = 698836896.

The previous prime is 2100536401. The next prime is 2100536411. The reversal of 2100536406 is 6046350012.

2100536406 is a `hidden beast` number, since 2 + 10 + 0 + 5 + 3 + 640 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (2100536401) and next prime (2100536411).

It is a self number, because there is not a number n which added to its sum of digits gives 2100536406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100536401) by changing a digit.

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, 102151 + ... + 120978.

It is an arithmetic number, because the mean of its divisors is an integer number (189995195).

Almost surely, 2^2100536406 is an apocalyptic number.

2100536406 is an abundant number, since it is smaller than the sum of its proper divisors (2459348274).

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

2100536406 is a wasteful number, since it uses less digits than its factorization.

2100536406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223660 (or 223657 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 2100536406 is about 45831.6092451487. The cubic root of 2100536406 is about 1280.6881890938.

Adding to 2100536406 its reverse (6046350012), we get a palindrome (8146886418).

The spelling of 2100536406 in words is "two billion, one hundred million, five hundred thirty-six thousand, four hundred six".