4243636992 has 72 divisors (see below), whose sum is σ = 12907745536. Its totient is φ = 1212466176.

The previous prime is 4243636979. The next prime is 4243636997. The reversal of 4243636992 is 2996363424.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (4243636997) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 389308 + ... + 400059.

Almost surely, 2^4243636992 is an apocalyptic number.

4243636992 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

4243636992 is an abundant number, since it is smaller than the sum of its proper divisors (8664108544).

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

4243636992 is an equidigital number, since it uses as much as digits as its factorization.

4243636992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 789393 (or 789379 counting only the distinct ones).

The product of its digits is 1679616, while the sum is 48.

The square root of 4243636992 is about 65143.2037284013. The cubic root of 4243636992 is about 1618.9971174300.

The spelling of 4243636992 in words is "four billion, two hundred forty-three million, six hundred thirty-six thousand, nine hundred ninety-two".