2100636434 has 8 divisors (see below), whose sum is σ = 3393335820. Its totient is φ = 969524496.

The previous prime is 2100636401. The next prime is 2100636451. The reversal of 2100636434 is 4346360012.

It can be written as a sum of positive squares in 2 ways, for example, as 2054355625 + 46280809 = 45325^2 + 6803^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 2100636397 and 2100636406.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40396829 + ... + 40396880.

Almost surely, 2^2100636434 is an apocalyptic number.

2100636434 is a deficient number, since it is larger than the sum of its proper divisors (1292699386).

2100636434 is a wasteful number, since it uses less digits than its factorization.

2100636434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80793724.

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 2100636434 is about 45832.7004877522. The cubic root of 2100636434 is about 1280.7085176544.

Adding to 2100636434 its reverse (4346360012), we get a palindrome (6446996446).

The spelling of 2100636434 in words is "two billion, one hundred million, six hundred thirty-six thousand, four hundred thirty-four".