72168834 has 8 divisors (see below), whose sum is σ = 144337680. Its totient is φ = 24056276.

The previous prime is 72168823. The next prime is 72168857. The reversal of 72168834 is 43886127.

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

72168834 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 72168792 and 72168801.

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, 6014064 + ... + 6014075.

It is an arithmetic number, because the mean of its divisors is an integer number (18042210).

Almost surely, 2^72168834 is an apocalyptic number.

72168834 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.

72168834 is a wasteful number, since it uses less digits than its factorization.

72168834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12028144.

The product of its digits is 64512, while the sum is 39.

The square root of 72168834 is about 8495.2241877422. The cubic root of 72168834 is about 416.3416856533.

The spelling of 72168834 in words is "seventy-two million, one hundred sixty-eight thousand, eight hundred thirty-four".