42709408 has 24 divisors (see below), whose sum is σ = 96096672. Its totient is φ = 18303936.

The previous prime is 42709379. The next prime is 42709421. The reversal of 42709408 is 80490724.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95110 + ... + 95557.

It is an arithmetic number, because the mean of its divisors is an integer number (4004028).

Almost surely, 2^42709408 is an apocalyptic number.

It is an amenable number.

42709408 is an abundant number, since it is smaller than the sum of its proper divisors (53387264).

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

42709408 is a wasteful number, since it uses less digits than its factorization.

42709408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190684 (or 190676 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 42709408 is about 6535.2435302749. The cubic root of 42709408 is about 349.5488281851.

The spelling of 42709408 in words is "forty-two million, seven hundred nine thousand, four hundred eight".