42232312 has 8 divisors (see below), whose sum is σ = 79185600. Its totient is φ = 21116152.

The previous prime is 42232279. The next prime is 42232327. The reversal of 42232312 is 21323224.

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

It is a self number, because there is not a number n which added to its sum of digits gives 42232312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2639512 + ... + 2639527.

It is an arithmetic number, because the mean of its divisors is an integer number (9898200).

Almost surely, 2^42232312 is an apocalyptic number.

It is an amenable number.

42232312 is a deficient number, since it is larger than the sum of its proper divisors (36953288).

42232312 is a wasteful number, since it uses less digits than its factorization.

42232312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5279045 (or 5279041 counting only the distinct ones).

The product of its digits is 576, while the sum is 19.

The square root of 42232312 is about 6498.6392421799. The cubic root of 42232312 is about 348.2423774994.

Adding to 42232312 its reverse (21323224), we get a palindrome (63555536).

The spelling of 42232312 in words is "forty-two million, two hundred thirty-two thousand, three hundred twelve".