42131560 has 32 divisors (see below), whose sum is σ = 95000040. Its totient is φ = 16816384.

The previous prime is 42131549. The next prime is 42131563. The reversal of 42131560 is 6513124.

It can be written as a sum of positive squares in 4 ways, for example, as 30935844 + 11195716 = 5562^2 + 3346^2 .

It is not an unprimeable number, because it can be changed into a prime (42131563) 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, 25314 + ... + 26926.

Almost surely, 2^42131560 is an apocalyptic number.

42131560 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42131560 is an abundant number, since it is smaller than the sum of its proper divisors (52868480).

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

42131560 is a wasteful number, since it uses less digits than its factorization.

42131560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2277 (or 2273 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 42131560 is about 6490.8828367180. The cubic root of 42131560 is about 347.9652275117.

Adding to 42131560 its reverse (6513124), we get a palindrome (48644684).

The spelling of 42131560 in words is "forty-two million, one hundred thirty-one thousand, five hundred sixty".