42656992 has 48 divisors (see below), whose sum is σ = 99090432. Its totient is φ = 17688960.

The previous prime is 42656987. The next prime is 42657031. The reversal of 42656992 is 29965624.

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 7 ways as a sum of consecutive naturals, for example, 3873 + ... + 10015.

It is an arithmetic number, because the mean of its divisors is an integer number (2064384).

Almost surely, 2^42656992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42656992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49545216).

42656992 is an abundant number, since it is smaller than the sum of its proper divisors (56433440).

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

42656992 is a wasteful number, since it uses less digits than its factorization.

42656992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6191 (or 6183 counting only the distinct ones).

The product of its digits is 233280, while the sum is 43.

The square root of 42656992 is about 6531.2320430375. The cubic root of 42656992 is about 349.4057726486.

The spelling of 42656992 in words is "forty-two million, six hundred fifty-six thousand, nine hundred ninety-two".