42566407 has 8 divisors (see below), whose sum is σ = 45895136. Its totient is φ = 39245472.

The previous prime is 42566401. The next prime is 42566411. The reversal of 42566407 is 70466524.

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 42566407 - 2¹⁵ = 42533639 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 (42566401) 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, 14758 + ... + 17404.

It is an arithmetic number, because the mean of its divisors is an integer number (5736892).

Almost surely, 2^42566407 is an apocalyptic number.

42566407 is a deficient number, since it is larger than the sum of its proper divisors (3328729).

42566407 is a wasteful number, since it uses less digits than its factorization.

42566407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3897.

The product of its (nonzero) digits is 40320, while the sum is 34.

The square root of 42566407 is about 6524.2936016093. The cubic root of 42566407 is about 349.1582684593.

The spelling of 42566407 in words is "forty-two million, five hundred sixty-six thousand, four hundred seven".