42852321 has 12 divisors (see below), whose sum is σ = 64190672. Its totient is φ = 28568052.

The previous prime is 42852311. The next prime is 42852331. The reversal of 42852321 is 12325824.

42852321 is a `hidden beast` number, since 428 + 5 + 232 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (42852311) and next prime (42852331).

It is not a de Polignac number, because 42852321 - 2⁷ = 42852193 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42852311) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 87931 + ... + 88416.

Almost surely, 2^42852321 is an apocalyptic number.

It is an amenable number.

42852321 is a deficient number, since it is larger than the sum of its proper divisors (21338351).

42852321 is an equidigital number, since it uses as much as digits as its factorization.

42852321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176362 (or 176350 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 42852321 is about 6546.1684212981. The cubic root of 42852321 is about 349.9382775513.

The spelling of 42852321 in words is "forty-two million, eight hundred fifty-two thousand, three hundred twenty-one".