42708738 has 8 divisors (see below), whose sum is σ = 85417488. Its totient is φ = 14236244.

The previous prime is 42708733. The next prime is 42708739. The reversal of 42708738 is 83780724.

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

42708738 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 42708696 and 42708705.

It is not an unprimeable number, because it can be changed into a prime (42708733) 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, 3559056 + ... + 3559067.

It is an arithmetic number, because the mean of its divisors is an integer number (10677186).

Almost surely, 2^42708738 is an apocalyptic number.

42708738 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

42708738 is a wasteful number, since it uses less digits than its factorization.

42708738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7118128.

The product of its (nonzero) digits is 75264, while the sum is 39.

The square root of 42708738 is about 6535.1922695511. The cubic root of 42708738 is about 349.5470003370.

The spelling of 42708738 in words is "forty-two million, seven hundred eight thousand, seven hundred thirty-eight".