42266045 has 8 divisors (see below), whose sum is σ = 50904024. Its totient is φ = 33689664.

The previous prime is 42266041. The next prime is 42266057. The reversal of 42266045 is 54066224.

It can be written as a sum of positive squares in 4 ways, for example, as 2184484 + 40081561 = 1478^2 + 6331^2 .

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 42266045 - 2² = 42266041 is a prime.

It is a super-4 number, since 4×42266045⁴ (a number of 32 digits) contains 4444 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42265999 and 42266017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42266041) 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, 13874 + ... + 16643.

It is an arithmetic number, because the mean of its divisors is an integer number (6363003).

Almost surely, 2^42266045 is an apocalyptic number.

It is an amenable number.

42266045 is a deficient number, since it is larger than the sum of its proper divisors (8637979).

42266045 is a wasteful number, since it uses less digits than its factorization.

42266045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30799.

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 42266045 is about 6501.2341136126. The cubic root of 42266045 is about 348.3350721941.

The spelling of 42266045 in words is "forty-two million, two hundred sixty-six thousand, forty-five".