72066210 has 32 divisors (see below), whose sum is σ = 173878272. Its totient is φ = 19115520.

The previous prime is 72066187. The next prime is 72066223. The reversal of 72066210 is 1266027.

It is a happy number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 559 + ... + 12018.

It is an arithmetic number, because the mean of its divisors is an integer number (5433696).

Almost surely, 2^72066210 is an apocalyptic number.

72066210 is an abundant number, since it is smaller than the sum of its proper divisors (101812062).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72066210 is a wasteful number, since it uses less digits than its factorization.

72066210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12778.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 72066210 is about 8489.1819393862. The cubic root of 72066210 is about 416.1442462361.

The spelling of 72066210 in words is "seventy-two million, sixty-six thousand, two hundred ten".