42011761 has 16 divisors (see below), whose sum is σ = 47551680. Its totient is φ = 36780480.

The previous prime is 42011707. The next prime is 42011773. The reversal of 42011761 is 16711024.

It is not a de Polignac number, because 42011761 - 2¹¹ = 42009713 is a prime.

It is a super-2 number, since 2×42011761² = 3529976124642242, which contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 43890 + ... + 44836.

It is an arithmetic number, because the mean of its divisors is an integer number (2971980).

Almost surely, 2^42011761 is an apocalyptic number.

It is an amenable number.

42011761 is a deficient number, since it is larger than the sum of its proper divisors (5539919).

42011761 is a wasteful number, since it uses less digits than its factorization.

42011761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1104.

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 42011761 is about 6481.6480157441. The cubic root of 42011761 is about 347.6351071347.

Adding to 42011761 its reverse (16711024), we get a palindrome (58722785).

The spelling of 42011761 in words is "forty-two million, eleven thousand, seven hundred sixty-one".