42709485 has 64 divisors (see below), whose sum is σ = 85542912. Its totient is φ = 17715456.

The previous prime is 42709483. The next prime is 42709493. The reversal of 42709485 is 58490724.

It is not a de Polignac number, because 42709485 - 2¹ = 42709483 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42709481) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 91222 + ... + 91688.

It is an arithmetic number, because the mean of its divisors is an integer number (1336608).

Almost surely, 2^42709485 is an apocalyptic number.

It is an amenable number.

42709485 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

42709485 is a wasteful number, since it uses less digits than its factorization.

42709485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562.

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 42709485 is about 6535.2494214070. The cubic root of 42709485 is about 349.5490382500.

The spelling of 42709485 in words is "forty-two million, seven hundred nine thousand, four hundred eighty-five".