72051814 has 8 divisors (see below), whose sum is σ = 114435288. Its totient is φ = 33906720.

The previous prime is 72051787. The next prime is 72051817. The reversal of 72051814 is 41815027.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72051817) 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 3 ways as a sum of consecutive naturals, for example, 1059552 + ... + 1059619.

It is an arithmetic number, because the mean of its divisors is an integer number (14304411).

Almost surely, 2^72051814 is an apocalyptic number.

72051814 is a deficient number, since it is larger than the sum of its proper divisors (42383474).

72051814 is a wasteful number, since it uses less digits than its factorization.

72051814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2119190.

The product of its (nonzero) digits is 2240, while the sum is 28.

The square root of 72051814 is about 8488.3339943713. Note that the first 3 decimals coincide. The cubic root of 72051814 is about 416.1165346288.

The spelling of 72051814 in words is "seventy-two million, fifty-one thousand, eight hundred fourteen".