42107249 has 8 divisors (see below), whose sum is σ = 46931040. Its totient is φ = 37544256.

The previous prime is 42107239. The next prime is 42107257. The reversal of 42107249 is 94270124.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42107249 - 2⁸ = 42106993 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42107239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64859 + ... + 65504.

It is an arithmetic number, because the mean of its divisors is an integer number (5866380).

Almost surely, 2^42107249 is an apocalyptic number.

It is an amenable number.

42107249 is a deficient number, since it is larger than the sum of its proper divisors (4823791).

42107249 is a wasteful number, since it uses less digits than its factorization.

42107249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130399.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 42107249 is about 6489.0098628373. The cubic root of 42107249 is about 347.8982863219.

The spelling of 42107249 in words is "forty-two million, one hundred seven thousand, two hundred forty-nine".