72273038 has 12 divisors (see below), whose sum is σ = 113329608. Its totient is φ = 34564860.

The previous prime is 72273031. The next prime is 72273041. The reversal of 72273038 is 83037227.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 72272995 and 72273013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72273031) 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 5 ways as a sum of consecutive naturals, for example, 33098 + ... + 35213.

It is an arithmetic number, because the mean of its divisors is an integer number (9444134).

Almost surely, 2^72273038 is an apocalyptic number.

72273038 is a deficient number, since it is larger than the sum of its proper divisors (41056570).

72273038 is a wasteful number, since it uses less digits than its factorization.

72273038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68359 (or 68336 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 32.

The square root of 72273038 is about 8501.3550684582. The cubic root of 72273038 is about 416.5419734253.

The spelling of 72273038 in words is "seventy-two million, two hundred seventy-three thousand, thirty-eight".