4243523648 has 56 divisors (see below), whose sum is σ = 10364004672. Its totient is φ = 1678754304.

The previous prime is 4243523579. The next prime is 4243523693. The reversal of 4243523648 is 8463253424.

It is a tau number, because it is divible by the number of its divisors (56).

It is a super-2 number, since 2×4243523648² = 36014985902270455808, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 358490 + ... + 370137.

It is an arithmetic number, because the mean of its divisors is an integer number (185071512).

Almost surely, 2^4243523648 is an apocalyptic number.

It is an amenable number.

4243523648 is an abundant number, since it is smaller than the sum of its proper divisors (6120481024).

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

4243523648 is a wasteful number, since it uses less digits than its factorization.

4243523648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 728659 (or 728649 counting only the distinct ones).

The product of its digits is 552960, while the sum is 41.

The square root of 4243523648 is about 65142.3337623085. Note that the first 3 decimals coincide. The cubic root of 4243523648 is about 1618.9827032813.

The spelling of 4243523648 in words is "four billion, two hundred forty-three million, five hundred twenty-three thousand, six hundred forty-eight".