42124656 has 40 divisors (see below), whose sum is σ = 124369024. Its totient is φ = 12035520.

The previous prime is 42124651. The next prime is 42124669. The reversal of 42124656 is 65642124.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42124651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62350 + ... + 63021.

Almost surely, 2^42124656 is an apocalyptic number.

It is an amenable number.

42124656 is an abundant number, since it is smaller than the sum of its proper divisors (82244368).

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

42124656 is a wasteful number, since it uses less digits than its factorization.

42124656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125389 (or 125383 counting only the distinct ones).

The product of its digits is 11520, while the sum is 30.

The square root of 42124656 is about 6490.3509920497. The cubic root of 42124656 is about 347.9462197246.

The spelling of 42124656 in words is "forty-two million, one hundred twenty-four thousand, six hundred fifty-six".