42532786 has 4 divisors (see below), whose sum is σ = 63799182. Its totient is φ = 21266392.

The previous prime is 42532771. The next prime is 42532807. The reversal of 42532786 is 68723524.

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., 41280625 + 1252161 = 6425^2 + 1119^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10633195 + ... + 10633198.

Almost surely, 2^42532786 is an apocalyptic number.

42532786 is a deficient number, since it is larger than the sum of its proper divisors (21266396).

42532786 is a wasteful number, since it uses less digits than its factorization.

42532786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21266395.

The product of its digits is 80640, while the sum is 37.

The square root of 42532786 is about 6521.7164918448. The cubic root of 42532786 is about 349.0663169024.

The spelling of 42532786 in words is "forty-two million, five hundred thirty-two thousand, seven hundred eighty-six".