42287069 has 16 divisors (see below), whose sum is σ = 47900160. Its totient is φ = 36984000.

The previous prime is 42287059. The next prime is 42287071. The reversal of 42287069 is 96078224.

It is a cyclic number.

It is not a de Polignac number, because 42287069 - 2⁸ = 42286813 is a prime.

It is a super-2 number, since 2×42287069² = 3576392409221522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42287009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91499 + ... + 91959.

It is an arithmetic number, because the mean of its divisors is an integer number (2993760).

Almost surely, 2^42287069 is an apocalyptic number.

It is an amenable number.

42287069 is a deficient number, since it is larger than the sum of its proper divisors (5613091).

42287069 is a wasteful number, since it uses less digits than its factorization.

42287069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 772.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 42287069 is about 6502.8508363640. The cubic root of 42287069 is about 348.3928189632.

The spelling of 42287069 in words is "forty-two million, two hundred eighty-seven thousand, sixty-nine".