42647241 has 16 divisors (see below), whose sum is σ = 69985664. Its totient is φ = 22495104.

The previous prime is 42647207. The next prime is 42647249. The reversal of 42647241 is 14274624.

It is not a de Polignac number, because 42647241 - 2¹³ = 42639049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42647199 and 42647208.

It is not an unprimeable number, because it can be changed into a prime (42647249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77836 + ... + 78381.

It is an arithmetic number, because the mean of its divisors is an integer number (4374104).

Almost surely, 2^42647241 is an apocalyptic number.

It is an amenable number.

42647241 is a deficient number, since it is larger than the sum of its proper divisors (27338423).

42647241 is a wasteful number, since it uses less digits than its factorization.

42647241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156240.

The product of its digits is 10752, while the sum is 30.

The square root of 42647241 is about 6530.4855102818. The cubic root of 42647241 is about 349.3791469602.

The spelling of 42647241 in words is "forty-two million, six hundred forty-seven thousand, two hundred forty-one".