42360138 has 16 divisors (see below), whose sum is σ = 94133760. Its totient is φ = 14120028.

The previous prime is 42360133. The next prime is 42360151. The reversal of 42360138 is 83106324.

It is a happy number.

42360138 is a `hidden beast` number, since 4 + 23 + 601 + 38 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (42360133) 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, 392170 + ... + 392277.

It is an arithmetic number, because the mean of its divisors is an integer number (5883360).

Almost surely, 2^42360138 is an apocalyptic number.

42360138 is an abundant number, since it is smaller than the sum of its proper divisors (51773622).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42360138 is a wasteful number, since it uses less digits than its factorization.

42360138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 784458 (or 784452 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 42360138 is about 6508.4666396933. The cubic root of 42360138 is about 348.5933693686.

The spelling of 42360138 in words is "forty-two million, three hundred sixty thousand, one hundred thirty-eight".