42113312 has 12 divisors (see below), whose sum is σ = 82910646. Its totient is φ = 21056640.

The previous prime is 42113311. The next prime is 42113317. The reversal of 42113312 is 21331124.

It can be written as a sum of positive squares in only one way, i.e., 38887696 + 3225616 = 6236^2 + 1796^2 .

It is a super-4 number, since 4×42113312⁴ (a number of 32 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (42113311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 657989 + ... + 658052.

Almost surely, 2^42113312 is an apocalyptic number.

It is an amenable number.

42113312 is a deficient number, since it is larger than the sum of its proper divisors (40797334).

42113312 is a wasteful number, since it uses less digits than its factorization.

42113312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1316051 (or 1316043 counting only the distinct ones).

The product of its digits is 144, while the sum is 17.

The square root of 42113312 is about 6489.4770205310. The cubic root of 42113312 is about 347.9149834158.

Adding to 42113312 its reverse (21331124), we get a palindrome (63444436).

The spelling of 42113312 in words is "forty-two million, one hundred thirteen thousand, three hundred twelve".