42331512 has 16 divisors (see below), whose sum is σ = 105828840. Its totient is φ = 14110496.

The previous prime is 42331511. The next prime is 42331517. The reversal of 42331512 is 21513324.

It is a super-2 number, since 2×42331512² = 3583913816412288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42331511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 881883 + ... + 881930.

Almost surely, 2^42331512 is an apocalyptic number.

It is an amenable number.

42331512 is an abundant number, since it is smaller than the sum of its proper divisors (63497328).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42331512 is a wasteful number, since it uses less digits than its factorization.

42331512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1763822 (or 1763818 counting only the distinct ones).

The product of its digits is 720, while the sum is 21.

The square root of 42331512 is about 6506.2671325423. The cubic root of 42331512 is about 348.5148278991.

Adding to 42331512 its reverse (21513324), we get a palindrome (63844836).

The spelling of 42331512 in words is "forty-two million, three hundred thirty-one thousand, five hundred twelve".