72122306 has 8 divisors (see below), whose sum is σ = 111673344. Its totient is φ = 34897860.

The previous prime is 72122293. The next prime is 72122327. The reversal of 72122306 is 60322127.

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

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, 581570 + ... + 581693.

It is an arithmetic number, because the mean of its divisors is an integer number (13959168).

Almost surely, 2^72122306 is an apocalyptic number.

72122306 is a deficient number, since it is larger than the sum of its proper divisors (39551038).

72122306 is a wasteful number, since it uses less digits than its factorization.

72122306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1163296.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 72122306 is about 8492.4852663988. The cubic root of 72122306 is about 416.2521931426.

The spelling of 72122306 in words is "seventy-two million, one hundred twenty-two thousand, three hundred six".