42206536 has 16 divisors (see below), whose sum is σ = 79224300. Its totient is φ = 21080064.

The previous prime is 42206533. The next prime is 42206551. The reversal of 42206536 is 63560224.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 42120100 + 86436 = 6490^2 + 294^2 .

It is a super-2 number, since 2×42206536² = 3562783362238592, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42206533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6696 + ... + 11368.

Almost surely, 2^42206536 is an apocalyptic number.

It is an amenable number.

42206536 is a deficient number, since it is larger than the sum of its proper divisors (37017764).

42206536 is a wasteful number, since it uses less digits than its factorization.

42206536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5808 (or 5804 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 42206536 is about 6496.6557550789. The cubic root of 42206536 is about 348.1715145202.

The spelling of 42206536 in words is "forty-two million, two hundred six thousand, five hundred thirty-six".