72642298 has 8 divisors (see below), whose sum is σ = 109095840. Its totient is φ = 36277020.

The previous prime is 72642293. The next prime is 72642299. The reversal of 72642298 is 89224627.

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

It is a self number, because there is not a number n which added to its sum of digits gives 72642298.

It is not an unprimeable number, because it can be changed into a prime (72642293) 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, 19968 + ... + 23323.

It is an arithmetic number, because the mean of its divisors is an integer number (13636980).

Almost surely, 2^72642298 is an apocalyptic number.

72642298 is a deficient number, since it is larger than the sum of its proper divisors (36453542).

72642298 is a wasteful number, since it uses less digits than its factorization.

72642298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44132.

The product of its digits is 96768, while the sum is 40.

The square root of 72642298 is about 8523.0451131036. The cubic root of 72642298 is about 417.2501724069.

The spelling of 72642298 in words is "seventy-two million, six hundred forty-two thousand, two hundred ninety-eight".