42939201 has 4 divisors (see below), whose sum is σ = 57252272. Its totient is φ = 28626132.

The previous prime is 42939199. The next prime is 42939223. The reversal of 42939201 is 10293924.

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 not a de Polignac number, because 42939201 - 2¹ = 42939199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42939271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7156531 + ... + 7156536.

It is an arithmetic number, because the mean of its divisors is an integer number (14313068).

Almost surely, 2^42939201 is an apocalyptic number.

It is an amenable number.

42939201 is a deficient number, since it is larger than the sum of its proper divisors (14313071).

42939201 is a wasteful number, since it uses less digits than its factorization.

42939201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14313070.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 42939201 is about 6552.8010041508. The cubic root of 42939201 is about 350.1746094742.

The spelling of 42939201 in words is "forty-two million, nine hundred thirty-nine thousand, two hundred one".