42827072 has 14 divisors (see below), whose sum is σ = 84985098. Its totient is φ = 21413504.

The previous prime is 42827041. The next prime is 42827077. The reversal of 42827072 is 27072824.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 42823936 + 3136 = 6544^2 + 56^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42827077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 334523 + ... + 334650.

Almost surely, 2^42827072 is an apocalyptic number.

It is an amenable number.

42827072 is a deficient number, since it is larger than the sum of its proper divisors (42158026).

42827072 is an equidigital number, since it uses as much as digits as its factorization.

42827072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 669185 (or 669175 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 32.

The square root of 42827072 is about 6544.2396044155. The cubic root of 42827072 is about 349.8695350478.

Adding to 42827072 its reverse (27072824), we get a palindrome (69899896).

The spelling of 42827072 in words is "forty-two million, eight hundred twenty-seven thousand, seventy-two".