42532636 has 12 divisors (see below), whose sum is σ = 74697112. Its totient is φ = 21190608.

The previous prime is 42532627. The next prime is 42532639. The reversal of 42532636 is 63623524.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 42532598 and 42532607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42532639) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17655 + ... + 19918.

Almost surely, 2^42532636 is an apocalyptic number.

It is an amenable number.

42532636 is a deficient number, since it is larger than the sum of its proper divisors (32164476).

42532636 is a wasteful number, since it uses less digits than its factorization.

42532636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37860 (or 37858 counting only the distinct ones).

The product of its digits is 25920, while the sum is 31.

The square root of 42532636 is about 6521.7049917947. The cubic root of 42532636 is about 349.0659065522.

It can be divided in two parts, 4253 and 2636, that added together give a square (6889 = 83²).

The spelling of 42532636 in words is "forty-two million, five hundred thirty-two thousand, six hundred thirty-six".