4288732720 has 40 divisors (see below), whose sum is σ = 10404842976. Its totient is φ = 1640905728.

The previous prime is 4288732711. The next prime is 4288732729. The reversal of 4288732720 is 272378824.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (4288732711) and next prime (4288732729).

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (4288732729) 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, 1163577 + ... + 1167256.

Almost surely, 2^4288732720 is an apocalyptic number.

4288732720 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4288732720 is an abundant number, since it is smaller than the sum of its proper divisors (6116110256).

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

4288732720 is a wasteful number, since it uses less digits than its factorization.

4288732720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2330869 (or 2330863 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 43.

The square root of 4288732720 is about 65488.4166857010. The cubic root of 4288732720 is about 1624.7117715225.

The spelling of 4288732720 in words is "four billion, two hundred eighty-eight million, seven hundred thirty-two thousand, seven hundred twenty".