42438575 has 12 divisors (see below), whose sum is σ = 53137968. Its totient is φ = 33619200.

The previous prime is 42438559. The next prime is 42438581. The reversal of 42438575 is 57583424.

It is a happy number.

It is not a de Polignac number, because 42438575 - 2⁴ = 42438559 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5666 + ... + 10815.

It is an arithmetic number, because the mean of its divisors is an integer number (4428164).

Almost surely, 2^42438575 is an apocalyptic number.

42438575 is a deficient number, since it is larger than the sum of its proper divisors (10699393).

42438575 is a wasteful number, since it uses less digits than its factorization.

42438575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16594 (or 16589 counting only the distinct ones).

The product of its digits is 134400, while the sum is 38.

The square root of 42438575 is about 6514.4896193025. The cubic root of 42438575 is about 348.8083966737.

The spelling of 42438575 in words is "forty-two million, four hundred thirty-eight thousand, five hundred seventy-five".