42849293 has 4 divisors (see below), whose sum is σ = 44007420. Its totient is φ = 41691168.

The previous prime is 42849283. The next prime is 42849307. The reversal of 42849293 is 39294824.

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

It can be written as a sum of positive squares in 2 ways, for example, as 39212644 + 3636649 = 6262^2 + 1907^2 .

It is a cyclic number.

It is not a de Polignac number, because 42849293 - 2⁶ = 42849229 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42849293.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42849283) 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, 579008 + ... + 579081.

It is an arithmetic number, because the mean of its divisors is an integer number (11001855).

Almost surely, 2^42849293 is an apocalyptic number.

It is an amenable number.

42849293 is a deficient number, since it is larger than the sum of its proper divisors (1158127).

42849293 is a wasteful number, since it uses less digits than its factorization.

42849293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1158126.

The product of its digits is 124416, while the sum is 41.

The square root of 42849293 is about 6545.9371368812. The cubic root of 42849293 is about 349.9300349945.

The spelling of 42849293 in words is "forty-two million, eight hundred forty-nine thousand, two hundred ninety-three".