42911924 has 18 divisors (see below), whose sum is σ = 82544322. Its totient is φ = 19505200.

The previous prime is 42911917. The next prime is 42911929.

42911924 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in only one way, i.e., 22372900 + 20539024 = 4730^2 + 4532^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42911929) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 43847 + ... + 44814.

Almost surely, 2^42911924 is an apocalyptic number.

42911924 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

42911924 is a deficient number, since it is larger than the sum of its proper divisors (39632398).

42911924 is a wasteful number, since it uses less digits than its factorization.

42911924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88687 (or 88674 counting only the distinct ones).

The product of its digits is 5184, while the sum is 32.

The square root of 42911924 is about 6550.7193498119. The cubic root of 42911924 is about 350.1004446406.

The spelling of 42911924 in words is "forty-two million, nine hundred eleven thousand, nine hundred twenty-four".