42074849 has 4 divisors (see below), whose sum is σ = 42137136. Its totient is φ = 42012564.

The previous prime is 42074831. The next prime is 42074863. The reversal of 42074849 is 94847024.

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 a cyclic number.

It is not a de Polignac number, because 42074849 - 2²⁴ = 25297633 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 (42074819) 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, 30119 + ... + 31484.

It is an arithmetic number, because the mean of its divisors is an integer number (10534284).

Almost surely, 2^42074849 is an apocalyptic number.

It is an amenable number.

42074849 is a deficient number, since it is larger than the sum of its proper divisors (62287).

42074849 is an equidigital number, since it uses as much as digits as its factorization.

42074849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62286.

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 42074849 is about 6486.5128536063. The cubic root of 42074849 is about 347.8090317233.

The spelling of 42074849 in words is "forty-two million, seventy-four thousand, eight hundred forty-nine".