72295990 has 16 divisors (see below), whose sum is σ = 140143248. Its totient is φ = 26693856.

The previous prime is 72295973. The next prime is 72295991. The reversal of 72295990 is 9959227.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72295991) 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 7 ways as a sum of consecutive naturals, for example, 277932 + ... + 278191.

It is an arithmetic number, because the mean of its divisors is an integer number (8758953).

Almost surely, 2^72295990 is an apocalyptic number.

72295990 is a deficient number, since it is larger than the sum of its proper divisors (67847258).

72295990 is a wasteful number, since it uses less digits than its factorization.

72295990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556143.

The product of its (nonzero) digits is 102060, while the sum is 43.

The square root of 72295990 is about 8502.7048637478. The cubic root of 72295990 is about 416.5860629861.

The spelling of 72295990 in words is "seventy-two million, two hundred ninety-five thousand, nine hundred ninety".