42681412 has 18 divisors (see below), whose sum is σ = 75855822. Its totient is φ = 21013344.

The previous prime is 42681383. The next prime is 42681427. The reversal of 42681412 is 21418624.

It can be written as a sum of positive squares in only one way, i.e., 34762816 + 7918596 = 5896^2 + 2814^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16768 + ... + 19144.

Almost surely, 2^42681412 is an apocalyptic number.

It is an amenable number.

42681412 is a deficient number, since it is larger than the sum of its proper divisors (33174410).

42681412 is a wasteful number, since it uses less digits than its factorization.

42681412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2515 (or 2446 counting only the distinct ones).

The product of its digits is 3072, while the sum is 28.

The square root of 42681412 is about 6533.1012543814. The cubic root of 42681412 is about 349.4724351181.

The spelling of 42681412 in words is "forty-two million, six hundred eighty-one thousand, four hundred twelve".