42540632 has 16 divisors (see below), whose sum is σ = 80510760. Its totient is φ = 21071104.

The previous prime is 42540581. The next prime is 42540637. The reversal of 42540632 is 23604524.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42540637) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 23993 + ... + 25704.

Almost surely, 2^42540632 is an apocalyptic number.

It is an amenable number.

42540632 is a deficient number, since it is larger than the sum of its proper divisors (37970128).

42540632 is a wasteful number, since it uses less digits than its factorization.

42540632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49810 (or 49806 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 42540632 is about 6522.3179928611. The cubic root of 42540632 is about 349.0877796075.

The spelling of 42540632 in words is "forty-two million, five hundred forty thousand, six hundred thirty-two".