72968290 has 16 divisors (see below), whose sum is σ = 132619968. Its totient is φ = 28903536.

The previous prime is 72968257. The next prime is 72968297. The reversal of 72968290 is 9286927.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (72968297) 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 7 ways as a sum of consecutive naturals, for example, 34392 + ... + 36451.

It is an arithmetic number, because the mean of its divisors is an integer number (8288748).

Almost surely, 2^72968290 is an apocalyptic number.

72968290 is a deficient number, since it is larger than the sum of its proper divisors (59651678).

72968290 is a wasteful number, since it uses less digits than its factorization.

72968290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70953.

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 72968290 is about 8542.1478563649. The cubic root of 72968290 is about 417.8733963323.

The spelling of 72968290 in words is "seventy-two million, nine hundred sixty-eight thousand, two hundred ninety".