72297274 has 8 divisors (see below), whose sum is σ = 123938208. Its totient is φ = 30984540.

The previous prime is 72297271. The next prime is 72297293. The reversal of 72297274 is 47279227.

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

It is not an unprimeable number, because it can be changed into a prime (72297271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2582032 + ... + 2582059.

It is an arithmetic number, because the mean of its divisors is an integer number (15492276).

Almost surely, 2^72297274 is an apocalyptic number.

72297274 is a deficient number, since it is larger than the sum of its proper divisors (51640934).

72297274 is a wasteful number, since it uses less digits than its factorization.

72297274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5164100.

The product of its digits is 98784, while the sum is 40.

The square root of 72297274 is about 8502.7803687970. The cubic root of 72297274 is about 416.5885292056.

The spelling of 72297274 in words is "seventy-two million, two hundred ninety-seven thousand, two hundred seventy-four".