42054293 has 4 divisors (see below), whose sum is σ = 42077388. Its totient is φ = 42031200.

The previous prime is 42054283. The next prime is 42054319. The reversal of 42054293 is 39245024.

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 20133169 + 21921124 = 4487^2 + 4682^2 .

It is a cyclic number.

It is not a de Polignac number, because 42054293 - 2⁸ = 42054037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42054203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8558 + ... + 12543.

It is an arithmetic number, because the mean of its divisors is an integer number (10519347).

Almost surely, 2^42054293 is an apocalyptic number.

It is an amenable number.

42054293 is a deficient number, since it is larger than the sum of its proper divisors (23095).

42054293 is a wasteful number, since it uses less digits than its factorization.

42054293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23094.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 42054293 is about 6484.9281414677. The cubic root of 42054293 is about 347.7523808795.

The spelling of 42054293 in words is "forty-two million, fifty-four thousand, two hundred ninety-three".