42471249 has 4 divisors (see below), whose sum is σ = 56628336. Its totient is φ = 28314164.

The previous prime is 42471241. The next prime is 42471257. The reversal of 42471249 is 94217424.

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 an interprime number because it is at equal distance from previous prime (42471241) and next prime (42471257).

It is a cyclic number.

It is not a de Polignac number, because 42471249 - 2³ = 42471241 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42471241) 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, 7078539 + ... + 7078544.

It is an arithmetic number, because the mean of its divisors is an integer number (14157084).

Almost surely, 2^42471249 is an apocalyptic number.

It is an amenable number.

42471249 is a deficient number, since it is larger than the sum of its proper divisors (14157087).

42471249 is a wasteful number, since it uses less digits than its factorization.

42471249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14157086.

The product of its digits is 16128, while the sum is 33.

The square root of 42471249 is about 6516.9969311025. The cubic root of 42471249 is about 348.8978910540.

The spelling of 42471249 in words is "forty-two million, four hundred seventy-one thousand, two hundred forty-nine".