71438006 has 8 divisors (see below), whose sum is σ = 107242920. Its totient is φ = 35690368.

The previous prime is 71437997. The next prime is 71438021. The reversal of 71438006 is 60083417.

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

It is a self number, because there is not a number n which added to its sum of digits gives 71438006.

It is a congruent 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, 11051 + ... + 16278.

It is an arithmetic number, because the mean of its divisors is an integer number (13405365).

Almost surely, 2^71438006 is an apocalyptic number.

71438006 is a deficient number, since it is larger than the sum of its proper divisors (35804914).

71438006 is a wasteful number, since it uses less digits than its factorization.

71438006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28638.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 71438006 is about 8452.1006856284. The cubic root of 71438006 is about 414.9315336802.

The spelling of 71438006 in words is "seventy-one million, four hundred thirty-eight thousand, six".