42488431 has 4 divisors (see below), whose sum is σ = 42674200. Its totient is φ = 42302664.

The previous prime is 42488417. The next prime is 42488441. The reversal of 42488431 is 13488424.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42488431 - 2⁵ = 42488399 is a prime.

It is a super-2 number, since 2×42488431² = 3610533537683522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42488401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92541 + ... + 92998.

It is an arithmetic number, because the mean of its divisors is an integer number (10668550).

Almost surely, 2^42488431 is an apocalyptic number.

42488431 is a deficient number, since it is larger than the sum of its proper divisors (185769).

42488431 is a wasteful number, since it uses less digits than its factorization.

42488431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185768.

The product of its digits is 24576, while the sum is 34.

The square root of 42488431 is about 6518.3150430153. The cubic root of 42488431 is about 348.9449342929.

The spelling of 42488431 in words is "forty-two million, four hundred eighty-eight thousand, four hundred thirty-one".