42493071 has 8 divisors (see below), whose sum is σ = 56867584. Its totient is φ = 28223640.

The previous prime is 42493051. The next prime is 42493093. The reversal of 42493071 is 17039424.

It is a happy number.

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

It is not a de Polignac number, because 42493071 - 2⁶ = 42493007 is a prime.

It is a super-2 number, since 2×42493071² = 3611322166022082, 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 (42493001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25321 + ... + 26946.

It is an arithmetic number, because the mean of its divisors is an integer number (7108448).

Almost surely, 2^42493071 is an apocalyptic number.

42493071 is a deficient number, since it is larger than the sum of its proper divisors (14374513).

42493071 is a wasteful number, since it uses less digits than its factorization.

42493071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52541.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 42493071 is about 6518.6709534996. The cubic root of 42493071 is about 348.9576361470.

The spelling of 42493071 in words is "forty-two million, four hundred ninety-three thousand, seventy-one".