42257560 has 32 divisors (see below), whose sum is σ = 95441040. Its totient is φ = 16838784.

The previous prime is 42257549. The next prime is 42257561. The reversal of 42257560 is 6575224.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42257561) 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, 9454 + ... + 13186.

Almost surely, 2^42257560 is an apocalyptic number.

42257560 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42257560 is an abundant number, since it is smaller than the sum of its proper divisors (53183480).

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

42257560 is a wasteful number, since it uses less digits than its factorization.

42257560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4027 (or 4023 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 31.

The square root of 42257560 is about 6500.5815124495. The cubic root of 42257560 is about 348.3117609609.

The spelling of 42257560 in words is "forty-two million, two hundred fifty-seven thousand, five hundred sixty".