4320421008 has 40 divisors (see below), whose sum is σ = 11165588928. Its totient is φ = 1439559552.

The previous prime is 4320420991. The next prime is 4320421037. The reversal of 4320421008 is 8001240234.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 111685 + ... + 145307.

Almost surely, 2^4320421008 is an apocalyptic number.

4320421008 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

4320421008 is an abundant number, since it is smaller than the sum of its proper divisors (6845167920).

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

4320421008 is a wasteful number, since it uses less digits than its factorization.

4320421008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36311 (or 36305 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 4320421008 is about 65729.9095389610. The cubic root of 4320421008 is about 1628.7034752537.

The spelling of 4320421008 in words is "four billion, three hundred twenty million, four hundred twenty-one thousand, eight".