42756216 has 16 divisors (see below), whose sum is σ = 106890600. Its totient is φ = 14252064.

The previous prime is 42756151. The next prime is 42756239. The reversal of 42756216 is 61265724.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 890731 + ... + 890778.

Almost surely, 2^42756216 is an apocalyptic number.

It is an amenable number.

42756216 is an abundant number, since it is smaller than the sum of its proper divisors (64134384).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42756216 is a wasteful number, since it uses less digits than its factorization.

42756216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1781518 (or 1781514 counting only the distinct ones).

The product of its digits is 20160, while the sum is 33.

The square root of 42756216 is about 6538.8237474335. The cubic root of 42756216 is about 349.6764792787.

The spelling of 42756216 in words is "forty-two million, seven hundred fifty-six thousand, two hundred sixteen".