4320663240 has 64 divisors (see below), whose sum is σ = 13095653760. Its totient is φ = 1140295680.

The previous prime is 4320663239. The next prime is 4320663253. The reversal of 4320663240 is 423660234.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 4320663198 and 4320663207.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 173956 + ... + 197235.

It is an arithmetic number, because the mean of its divisors is an integer number (204619590).

Almost surely, 2^4320663240 is an apocalyptic number.

4320663240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4320663240 is an abundant number, since it is smaller than the sum of its proper divisors (8774990520).

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

4320663240 is a wasteful number, since it uses less digits than its factorization.

4320663240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371302 (or 371298 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 30.

The square root of 4320663240 is about 65731.7521446066. The cubic root of 4320663240 is about 1628.7339133928.

The spelling of 4320663240 in words is "four billion, three hundred twenty million, six hundred sixty-three thousand, two hundred forty".