42732813 has 8 divisors (see below), whose sum is σ = 57757888. Its totient is φ = 28098144.

The previous prime is 42732793. The next prime is 42732829. The reversal of 42732813 is 31823724.

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

It is not a de Polignac number, because 42732813 - 2¹² = 42728717 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 (42732853) 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, 97345 + ... + 97782.

It is an arithmetic number, because the mean of its divisors is an integer number (7219736).

Almost surely, 2^42732813 is an apocalyptic number.

It is an amenable number.

42732813 is a deficient number, since it is larger than the sum of its proper divisors (15025075).

42732813 is a wasteful number, since it uses less digits than its factorization.

42732813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195203.

The product of its digits is 8064, while the sum is 30.

The square root of 42732813 is about 6537.0339604441. The cubic root of 42732813 is about 349.6126681111.

The spelling of 42732813 in words is "forty-two million, seven hundred thirty-two thousand, eight hundred thirteen".