4098549636 has 36 divisors (see below), whose sum is σ = 10398761100. Its totient is φ = 1361101248.

The previous prime is 4098549629. The next prime is 4098549643. The reversal of 4098549636 is 6369458904.

4098549636 is a `hidden beast` number, since 4 + 0 + 98 + 549 + 6 + 3 + 6 = 666.

4098549636 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (4098549629) and next prime (4098549643).

It can be written as a sum of positive squares in 2 ways, for example, as 2408846400 + 1689703236 = 49080^2 + 41106^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 201931 + ... + 221298.

It is an arithmetic number, because the mean of its divisors is an integer number (288854475).

Almost surely, 2^4098549636 is an apocalyptic number.

It is an amenable number.

4098549636 is an abundant number, since it is smaller than the sum of its proper divisors (6300211464).

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

4098549636 is a wasteful number, since it uses less digits than its factorization.

4098549636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423508 (or 423503 counting only the distinct ones).

The product of its (nonzero) digits is 5598720, while the sum is 54.

The square root of 4098549636 is about 64019.9159324659. The cubic root of 4098549636 is about 1600.3319149947.

The spelling of 4098549636 in words is "four billion, ninety-eight million, five hundred forty-nine thousand, six hundred thirty-six".