72273916 has 48 divisors (see below), whose sum is σ = 153750240. Its totient is φ = 29272320.

The previous prime is 72273907. The next prime is 72273923. The reversal of 72273916 is 61937227.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14410 + ... + 18766.

It is an arithmetic number, because the mean of its divisors is an integer number (3203130).

Almost surely, 2^72273916 is an apocalyptic number.

It is an amenable number.

72273916 is an abundant number, since it is smaller than the sum of its proper divisors (81476324).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72273916 is a wasteful number, since it uses less digits than its factorization.

72273916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4414 (or 4412 counting only the distinct ones).

The product of its digits is 31752, while the sum is 37.

The square root of 72273916 is about 8501.4067071279. The cubic root of 72273916 is about 416.5436601879.

The spelling of 72273916 in words is "seventy-two million, two hundred seventy-three thousand, nine hundred sixteen".