72180294 has 8 divisors (see below), whose sum is σ = 144360600. Its totient is φ = 24060096.

The previous prime is 72180293. The next prime is 72180299. The reversal of 72180294 is 49208127.

It is a happy number.

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

72180294 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72180293) by changing a digit.

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, 6015019 + ... + 6015030.

It is an arithmetic number, because the mean of its divisors is an integer number (18045075).

Almost surely, 2^72180294 is an apocalyptic number.

72180294 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.

72180294 is a wasteful number, since it uses less digits than its factorization.

72180294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12030054.

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 72180294 is about 8495.8986575877. The cubic root of 72180294 is about 416.3637220501.

The spelling of 72180294 in words is "seventy-two million, one hundred eighty thousand, two hundred ninety-four".