42527444 has 6 divisors (see below), whose sum is σ = 74423034. Its totient is φ = 21263720.

The previous prime is 42527417. The next prime is 42527449. The reversal of 42527444 is 44472524.

It can be written as a sum of positive squares in only one way, i.e., 21715600 + 20811844 = 4660^2 + 4562^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 42527444.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42527449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5315927 + ... + 5315934.

It is an arithmetic number, because the mean of its divisors is an integer number (12403839).

Almost surely, 2^42527444 is an apocalyptic number.

It is an amenable number.

42527444 is a deficient number, since it is larger than the sum of its proper divisors (31895590).

42527444 is a wasteful number, since it uses less digits than its factorization.

42527444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10631865 (or 10631863 counting only the distinct ones).

The product of its digits is 35840, while the sum is 32.

The square root of 42527444 is about 6521.3069242292. The cubic root of 42527444 is about 349.0517023700.

Adding to 42527444 its reverse (44472524), we get a palindrome (86999968).

The spelling of 42527444 in words is "forty-two million, five hundred twenty-seven thousand, four hundred forty-four".