42472243 has 4 divisors (see below), whose sum is σ = 46333368. Its totient is φ = 38611120.

The previous prime is 42472169. The next prime is 42472247. The reversal of 42472243 is 34227424.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42472243 - 2¹⁷ = 42341171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42472247) 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, 1930546 + ... + 1930567.

It is an arithmetic number, because the mean of its divisors is an integer number (11583342).

Almost surely, 2^42472243 is an apocalyptic number.

42472243 is a deficient number, since it is larger than the sum of its proper divisors (3861125).

42472243 is a wasteful number, since it uses less digits than its factorization.

42472243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3861124.

The product of its digits is 10752, while the sum is 28.

The square root of 42472243 is about 6517.0731927760. The cubic root of 42472243 is about 348.9006129094.

Adding to 42472243 its reverse (34227424), we get a palindrome (76699667).

The spelling of 42472243 in words is "forty-two million, four hundred seventy-two thousand, two hundred forty-three".