72296390 has 8 divisors (see below), whose sum is σ = 130133520. Its totient is φ = 28918552.

The previous prime is 72296381. The next prime is 72296437. The reversal of 72296390 is 9369227.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3614810 + ... + 3614829.

It is an arithmetic number, because the mean of its divisors is an integer number (16266690).

Almost surely, 2^72296390 is an apocalyptic number.

72296390 is a deficient number, since it is larger than the sum of its proper divisors (57837130).

72296390 is a wasteful number, since it uses less digits than its factorization.

72296390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7229646.

The product of its (nonzero) digits is 40824, while the sum is 38.

The square root of 72296390 is about 8502.7283856419. The cubic root of 72296390 is about 416.5868312819.

The spelling of 72296390 in words is "seventy-two million, two hundred ninety-six thousand, three hundred ninety".