42756988 has 12 divisors (see below), whose sum is σ = 75941992. Its totient is φ = 21059280.

The previous prime is 42756983. The next prime is 42756997. The reversal of 42756988 is 88965724.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42756983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79503 + ... + 80038.

Almost surely, 2^42756988 is an apocalyptic number.

It is an amenable number.

42756988 is a deficient number, since it is larger than the sum of its proper divisors (33185004).

42756988 is a wasteful number, since it uses less digits than its factorization.

42756988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159612 (or 159610 counting only the distinct ones).

The product of its digits is 967680, while the sum is 49.

The square root of 42756988 is about 6538.8827791910. The cubic root of 42756988 is about 349.6785838352.

The spelling of 42756988 in words is "forty-two million, seven hundred fifty-six thousand, nine hundred eighty-eight".