42644526 has 8 divisors (see below), whose sum is σ = 85289064. Its totient is φ = 14214840.

The previous prime is 42644521. The next prime is 42644527. The reversal of 42644526 is 62544624.

It is a sphenic number, since it is the product of 3 distinct primes.

42644526 is an admirable number.

It is a Curzon number.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42644521) 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, 3553705 + ... + 3553716.

It is an arithmetic number, because the mean of its divisors is an integer number (10661133).

Almost surely, 2^42644526 is an apocalyptic number.

42644526 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42644526 is a wasteful number, since it uses less digits than its factorization.

42644526 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7107426.

The product of its digits is 46080, while the sum is 33.

The square root of 42644526 is about 6530.2776357518. The cubic root of 42644526 is about 349.3717327681.

The spelling of 42644526 in words is "forty-two million, six hundred forty-four thousand, five hundred twenty-six".