42657524 has 24 divisors (see below), whose sum is σ = 91878528. Its totient is φ = 16875360.

The previous prime is 42657523. The next prime is 42657557. The reversal of 42657524 is 42575624.

It is a super-4 number, since 4×42657524⁴ (a number of 32 digits) contains 4444 as substring.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42657523) 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, 58232 + ... + 58959.

It is an arithmetic number, because the mean of its divisors is an integer number (3828272).

Almost surely, 2^42657524 is an apocalyptic number.

It is an amenable number.

42657524 is an abundant number, since it is smaller than the sum of its proper divisors (49221004).

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

42657524 is a wasteful number, since it uses less digits than its factorization.

42657524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117215 (or 117213 counting only the distinct ones).

The product of its digits is 67200, while the sum is 35.

The square root of 42657524 is about 6531.2727702952. The cubic root of 42657524 is about 349.4072251897.

The spelling of 42657524 in words is "forty-two million, six hundred fifty-seven thousand, five hundred twenty-four".