38304321 has 16 divisors (see below), whose sum is σ = 56091648. Its totient is φ = 23058000.

The previous prime is 38304317. The next prime is 38304337. The reversal of 38304321 is 12340383.

It is not a de Polignac number, because 38304321 - 2² = 38304317 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 38304291 and 38304300.

It is not an unprimeable number, because it can be changed into a prime (38304311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1140 + ... + 8826.

It is an arithmetic number, because the mean of its divisors is an integer number (3505728).

Almost surely, 2^38304321 is an apocalyptic number.

It is an amenable number.

38304321 is a deficient number, since it is larger than the sum of its proper divisors (17787327).

38304321 is a wasteful number, since it uses less digits than its factorization.

38304321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7852.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 38304321 is about 6189.0484729076. The cubic root of 38304321 is about 337.0926289296.

The spelling of 38304321 in words is "thirty-eight million, three hundred four thousand, three hundred twenty-one".