42438697 has 8 divisors (see below), whose sum is σ = 49533696. Its totient is φ = 35601792.

The previous prime is 42438691. The next prime is 42438709. The reversal of 42438697 is 79683424.

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 42438697 - 2³ = 42438689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42438691) 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, 64168 + ... + 64825.

It is an arithmetic number, because the mean of its divisors is an integer number (6191712).

Almost surely, 2^42438697 is an apocalyptic number.

42438697 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

It is an amenable number.

42438697 is a deficient number, since it is larger than the sum of its proper divisors (7094999).

42438697 is a wasteful number, since it uses less digits than its factorization.

42438697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129047.

The product of its digits is 290304, while the sum is 43.

The square root of 42438697 is about 6514.4989830378. The cubic root of 42438697 is about 348.8087309182.

The spelling of 42438697 in words is "forty-two million, four hundred thirty-eight thousand, six hundred ninety-seven".