4207998636 has 18 divisors (see below), whose sum is σ = 10636885532. Its totient is φ = 1402666200.

The previous prime is 4207998631. The next prime is 4207998659. The reversal of 4207998636 is 6368997024.

It is a happy number.

4207998636 is a `hidden beast` number, since 420 + 79 + 98 + 63 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (4207998631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 58444390 + ... + 58444461.

Almost surely, 2^4207998636 is an apocalyptic number.

It is an amenable number.

4207998636 is an abundant number, since it is smaller than the sum of its proper divisors (6428886896).

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

4207998636 is a wasteful number, since it uses less digits than its factorization.

4207998636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116888861 (or 116888856 counting only the distinct ones).

The product of its (nonzero) digits is 3919104, while the sum is 54.

The square root of 4207998636 is about 64869.0884474262. The cubic root of 4207998636 is about 1614.4522210015.

It can be divided in two parts, 42079 and 98636, that added together give a triangular number (140715 = T₅₃₀).

The spelling of 4207998636 in words is "four billion, two hundred seven million, nine hundred ninety-eight thousand, six hundred thirty-six".