42438141 has 8 divisors (see below), whose sum is σ = 62871360. Its totient is φ = 28292076.

The previous prime is 42438113. The next prime is 42438161. The reversal of 42438141 is 14183424.

It is not a de Polignac number, because 42438141 - 2¹⁵ = 42405373 is a prime.

It is a super-3 number, since 3×42438141³ (a number of 24 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 1571783 = 42438141 / (4 + 2 + 4 + 3 + 8 + 1 + 4 + 1).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42438161) 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, 785865 + ... + 785918.

It is an arithmetic number, because the mean of its divisors is an integer number (7858920).

Almost surely, 2^42438141 is an apocalyptic number.

It is an amenable number.

42438141 is a deficient number, since it is larger than the sum of its proper divisors (20433219).

42438141 is a wasteful number, since it uses less digits than its factorization.

42438141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1571792 (or 1571786 counting only the distinct ones).

The product of its digits is 3072, while the sum is 27.

The square root of 42438141 is about 6514.4563088565. The cubic root of 42438141 is about 348.8072076347.

The spelling of 42438141 in words is "forty-two million, four hundred thirty-eight thousand, one hundred forty-one".