42011709 has 8 divisors (see below), whose sum is σ = 59310720. Its totient is φ = 26360256.

The previous prime is 42011707. The next prime is 42011773. The reversal of 42011709 is 90711024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42011709 - 2¹ = 42011707 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42011701) 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, 411829 + ... + 411930.

It is an arithmetic number, because the mean of its divisors is an integer number (7413840).

Almost surely, 2^42011709 is an apocalyptic number.

It is an amenable number.

42011709 is a deficient number, since it is larger than the sum of its proper divisors (17299011).

42011709 is a wasteful number, since it uses less digits than its factorization.

42011709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 823779.

The product of its (nonzero) digits is 504, while the sum is 24.

The square root of 42011709 is about 6481.6440044174. The cubic root of 42011709 is about 347.6349637063.

The spelling of 42011709 in words is "forty-two million, eleven thousand, seven hundred nine".