42299912 has 8 divisors (see below), whose sum is σ = 79312350. Its totient is φ = 21149952.

The previous prime is 42299899. The next prime is 42299941. The reversal of 42299912 is 21999224.

It can be written as a sum of positive squares in only one way, i.e., 24542116 + 17757796 = 4954^2 + 4214^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2643737 + ... + 2643752.

Almost surely, 2^42299912 is an apocalyptic number.

It is an amenable number.

42299912 is a deficient number, since it is larger than the sum of its proper divisors (37012438).

42299912 is a wasteful number, since it uses less digits than its factorization.

42299912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5287495 (or 5287491 counting only the distinct ones).

The product of its digits is 23328, while the sum is 38.

The square root of 42299912 is about 6503.8382513713. The cubic root of 42299912 is about 348.4280855051.

It can be divided in two parts, 4229 and 9912, that added together give a palindrome (14141).

The spelling of 42299912 in words is "forty-two million, two hundred ninety-nine thousand, nine hundred twelve".