42532642 has 4 divisors (see below), whose sum is σ = 63798966. Its totient is φ = 21266320.

The previous prime is 42532639. The next prime is 42532649. The reversal of 42532642 is 24623524.

42532642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 38576521 + 3956121 = 6211^2 + 1989^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 42532642.

It is not an unprimeable number, because it can be changed into a prime (42532649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10633159 + ... + 10633162.

Almost surely, 2^42532642 is an apocalyptic number.

42532642 is a deficient number, since it is larger than the sum of its proper divisors (21266324).

42532642 is a wasteful number, since it uses less digits than its factorization.

42532642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21266323.

The product of its digits is 11520, while the sum is 28.

The square root of 42532642 is about 6521.7054517971. The cubic root of 42532642 is about 349.0659229662.

The spelling of 42532642 in words is "forty-two million, five hundred thirty-two thousand, six hundred forty-two".