72082012 has 6 divisors (see below), whose sum is σ = 126143528. Its totient is φ = 36041004.

The previous prime is 72082009. The next prime is 72082013. The reversal of 72082012 is 21028027.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72082013) 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 as a sum of consecutive naturals, namely, 9010248 + ... + 9010255.

Almost surely, 2^72082012 is an apocalyptic number.

It is an amenable number.

72082012 is a deficient number, since it is larger than the sum of its proper divisors (54061516).

72082012 is a wasteful number, since it uses less digits than its factorization.

72082012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18020507 (or 18020505 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 72082012 is about 8490.1126023157. The cubic root of 72082012 is about 416.1746600773.

The spelling of 72082012 in words is "seventy-two million, eighty-two thousand, twelve".