42735538 has 8 divisors (see below), whose sum is σ = 64875888. Its totient is φ = 21110244.

The previous prime is 42735533. The next prime is 42735599. The reversal of 42735538 is 83553724.

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

It is a junction number, because it is equal to n+sod(n) for n = 42735497 and 42735506.

It is not an unprimeable number, because it can be changed into a prime (42735533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128556 + ... + 128887.

It is an arithmetic number, because the mean of its divisors is an integer number (8109486).

Almost surely, 2^42735538 is an apocalyptic number.

42735538 is a deficient number, since it is larger than the sum of its proper divisors (22140350).

42735538 is a wasteful number, since it uses less digits than its factorization.

42735538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257528.

The product of its digits is 100800, while the sum is 37.

The square root of 42735538 is about 6537.2423849816. The cubic root of 42735538 is about 349.6200993581.

The spelling of 42735538 in words is "forty-two million, seven hundred thirty-five thousand, five hundred thirty-eight".