42528669 has 8 divisors (see below), whose sum is σ = 59689440. Its totient is φ = 26860176.

The previous prime is 42528659. The next prime is 42528671. The reversal of 42528669 is 96682524.

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

It is not a de Polignac number, because 42528669 - 2¹¹ = 42526621 is a prime.

It is a super-2 number, since 2×42528669² = 3617375373823122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 42528669.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42528649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 373002 + ... + 373115.

It is an arithmetic number, because the mean of its divisors is an integer number (7461180).

Almost surely, 2^42528669 is an apocalyptic number.

It is an amenable number.

42528669 is a deficient number, since it is larger than the sum of its proper divisors (17160771).

42528669 is a wasteful number, since it uses less digits than its factorization.

42528669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 746139.

The product of its digits is 207360, while the sum is 42.

The square root of 42528669 is about 6521.4008464440. The cubic root of 42528669 is about 349.0550538076.

It can be divided in two parts, 4252 and 8669, that added together give a palindrome (12921).

The spelling of 42528669 in words is "forty-two million, five hundred twenty-eight thousand, six hundred sixty-nine".