42739108 has 6 divisors (see below), whose sum is σ = 74793446. Its totient is φ = 21369552.

The previous prime is 42739093. The next prime is 42739153. The reversal of 42739108 is 80193724.

It can be written as a sum of positive squares in only one way, i.e., 30008484 + 12730624 = 5478^2 + 3568^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5342385 + ... + 5342392.

Almost surely, 2^42739108 is an apocalyptic number.

It is an amenable number.

42739108 is a deficient number, since it is larger than the sum of its proper divisors (32054338).

42739108 is a wasteful number, since it uses less digits than its factorization.

42739108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10684781 (or 10684779 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 42739108 is about 6537.5154301921. The cubic root of 42739108 is about 349.6298344955.

The spelling of 42739108 in words is "forty-two million, seven hundred thirty-nine thousand, one hundred eight".