120072306 has 16 divisors (see below), whose sum is σ = 240500448. Its totient is φ = 39964800.

The previous prime is 120072301. The next prime is 120072307. The reversal of 120072306 is 603270021.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (120072301) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 10335 + ... + 18626.

It is an arithmetic number, because the mean of its divisors is an integer number (15031278).

Almost surely, 2^120072306 is an apocalyptic number.

120072306 is an abundant number, since it is smaller than the sum of its proper divisors (120428142).

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

120072306 is a wasteful number, since it uses less digits than its factorization.

120072306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29657.

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 120072306 is about 10957.7509553740. The cubic root of 120072306 is about 493.3414627140.

The spelling of 120072306 in words is "one hundred twenty million, seventy-two thousand, three hundred six".