42046261 has 4 divisors (see below), whose sum is σ = 43402624. Its totient is φ = 40689900.

The previous prime is 42046241. The next prime is 42046289. The reversal of 42046261 is 16264024.

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 42046261 - 2¹⁷ = 41915189 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 (42046241) 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, 678135 + ... + 678196.

It is an arithmetic number, because the mean of its divisors is an integer number (10850656).

Almost surely, 2^42046261 is an apocalyptic number.

It is an amenable number.

42046261 is a deficient number, since it is larger than the sum of its proper divisors (1356363).

42046261 is a wasteful number, since it uses less digits than its factorization.

42046261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1356362.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 42046261 is about 6484.3088297829. The cubic root of 42046261 is about 347.7302402547.

The spelling of 42046261 in words is "forty-two million, forty-six thousand, two hundred sixty-one".