42528493 has 8 divisors (see below), whose sum is σ = 48903488. Its totient is φ = 36228384.

The previous prime is 42528491. The next prime is 42528511. The reversal of 42528493 is 39482524.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 42528493 - 2¹ = 42528491 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42528491) 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, 17496 + ... + 19777.

It is an arithmetic number, because the mean of its divisors is an integer number (6112936).

Almost surely, 2^42528493 is an apocalyptic number.

It is an amenable number.

42528493 is a deficient number, since it is larger than the sum of its proper divisors (6374995).

42528493 is a wasteful number, since it uses less digits than its factorization.

42528493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37443.

The product of its digits is 69120, while the sum is 37.

The square root of 42528493 is about 6521.3873523967. The cubic root of 42528493 is about 349.0545722989.

The spelling of 42528493 in words is "forty-two million, five hundred twenty-eight thousand, four hundred ninety-three".