42122312 has 16 divisors (see below), whose sum is σ = 80092800. Its totient is φ = 20764240.

The previous prime is 42122309. The next prime is 42122323. The reversal of 42122312 is 21322124.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36512 + ... + 37647.

It is an arithmetic number, because the mean of its divisors is an integer number (5005800).

Almost surely, 2^42122312 is an apocalyptic number.

It is an amenable number.

42122312 is a deficient number, since it is larger than the sum of its proper divisors (37970488).

42122312 is a wasteful number, since it uses less digits than its factorization.

42122312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74236 (or 74232 counting only the distinct ones).

The product of its digits is 192, while the sum is 17.

The square root of 42122312 is about 6490.1704137873. The cubic root of 42122312 is about 347.9397658553.

Adding to 42122312 its reverse (21322124), we get a palindrome (63444436).

The spelling of 42122312 in words is "forty-two million, one hundred twenty-two thousand, three hundred twelve".