4099636 has 6 divisors (see below), whose sum is σ = 7174370. Its totient is φ = 2049816.

The previous prime is 4099621. The next prime is 4099661. The reversal of 4099636 is 6369904.

It can be written as a sum of positive squares in only one way, i.e., 4040100 + 59536 = 2010^2 + 244^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4099595 and 4099604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 512451 + ... + 512458.

Almost surely, 2^4099636 is an apocalyptic number.

It is an amenable number.

4099636 is a deficient number, since it is larger than the sum of its proper divisors (3074734).

4099636 is a wasteful number, since it uses less digits than its factorization.

4099636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1024913 (or 1024911 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 37.

The square root of 4099636 is about 2024.7557877433. The cubic root of 4099636 is about 160.0473297480.

The spelling of 4099636 in words is "four million, ninety-nine thousand, six hundred thirty-six".