42700005 has 24 divisors (see below), whose sum is σ = 78368472. Its totient is φ = 21433344.

The previous prime is 42699997. The next prime is 42700037. The reversal of 42700005 is 50000724.

It is a happy number.

42700005 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 22638564 + 20061441 = 4758^2 + 4479^2 .

It is not a de Polignac number, because 42700005 - 2³ = 42699997 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27144 + ... + 28673.

It is an arithmetic number, because the mean of its divisors is an integer number (3265353).

Almost surely, 2^42700005 is an apocalyptic number.

42700005 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

42700005 is a deficient number, since it is larger than the sum of its proper divisors (35668467).

42700005 is a wasteful number, since it uses less digits than its factorization.

42700005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55845 (or 55842 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 18.

The square root of 42700005 is about 6534.5240836652. The cubic root of 42700005 is about 349.5231738151.

Adding to 42700005 its reverse (50000724), we get a palindrome (92700729).

The spelling of 42700005 in words is "forty-two million, seven hundred thousand, five".