42212416 has 14 divisors (see below), whose sum is σ = 83765390. Its totient is φ = 21106176.

The previous prime is 42212413. The next prime is 42212431. The reversal of 42212416 is 61421224.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 42198016 + 14400 = 6496^2 + 120^2 .

It is not an unprimeable number, because it can be changed into a prime (42212413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 329721 + ... + 329848.

Almost surely, 2^42212416 is an apocalyptic number.

It is an amenable number.

42212416 is a deficient number, since it is larger than the sum of its proper divisors (41552974).

42212416 is an equidigital number, since it uses as much as digits as its factorization.

42212416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 659581 (or 659571 counting only the distinct ones).

The product of its digits is 768, while the sum is 22.

The square root of 42212416 is about 6497.1082798427. The cubic root of 42212416 is about 348.1876822645.

The spelling of 42212416 in words is "forty-two million, two hundred twelve thousand, four hundred sixteen".