42243201 has 80 divisors (see below), whose sum is σ = 84889728. Its totient is φ = 20217600.

The previous prime is 42243199. The next prime is 42243211. The reversal of 42243201 is 10234224.

42243201 is a `hidden beast` number, since 422 + 43 + 201 = 666.

It is not a de Polignac number, because 42243201 - 2¹ = 42243199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42243211) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 80821 + ... + 81341.

Almost surely, 2^42243201 is an apocalyptic number.

It is an amenable number.

42243201 is an abundant number, since it is smaller than the sum of its proper divisors (42646527).

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

42243201 is a wasteful number, since it uses less digits than its factorization.

42243201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564 (or 555 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 42243201 is about 6499.4769789576. The cubic root of 42243201 is about 348.2723047060.

Adding to 42243201 its reverse (10234224), we get a palindrome (52477425).

The spelling of 42243201 in words is "forty-two million, two hundred forty-three thousand, two hundred one".