72162034 has 16 divisors (see below), whose sum is σ = 127972800. Its totient is φ = 29859984.

The previous prime is 72162029. The next prime is 72162037. The reversal of 72162034 is 43026127.

It is not an unprimeable number, because it can be changed into a prime (72162037) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 88464 + ... + 89275.

It is an arithmetic number, because the mean of its divisors is an integer number (7998300).

Almost surely, 2^72162034 is an apocalyptic number.

72162034 is a deficient number, since it is larger than the sum of its proper divisors (55810766).

72162034 is a wasteful number, since it uses less digits than its factorization.

72162034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177777.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 72162034 is about 8494.8239534436. The cubic root of 72162034 is about 416.3286088525.

The spelling of 72162034 in words is "seventy-two million, one hundred sixty-two thousand, thirty-four".