42864401 has 4 divisors (see below), whose sum is σ = 43080000. Its totient is φ = 42648804.

The previous prime is 42864337. The next prime is 42864443. The reversal of 42864401 is 10446824.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42864401 - 2⁶ = 42864337 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42864491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107501 + ... + 107898.

It is an arithmetic number, because the mean of its divisors is an integer number (10770000).

Almost surely, 2^42864401 is an apocalyptic number.

It is an amenable number.

42864401 is a deficient number, since it is larger than the sum of its proper divisors (215599).

42864401 is a wasteful number, since it uses less digits than its factorization.

42864401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215598.

The product of its (nonzero) digits is 6144, while the sum is 29.

The square root of 42864401 is about 6547.0910334285. The cubic root of 42864401 is about 349.9711568068.

The spelling of 42864401 in words is "forty-two million, eight hundred sixty-four thousand, four hundred one".