727142220 has 72 divisors (see below), whose sum is σ = 2520764064. Its totient is φ = 166203648.

The previous prime is 727142209. The next prime is 727142233. The reversal of 727142220 is 22241727.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 287289 + ... + 289808.

It is an arithmetic number, because the mean of its divisors is an integer number (35010612).

Almost surely, 2^727142220 is an apocalyptic number.

727142220 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

727142220 is an abundant number, since it is smaller than the sum of its proper divisors (1793621844).

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

727142220 is a wasteful number, since it uses less digits than its factorization.

727142220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 577119 (or 577114 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 27.

The square root of 727142220 is about 26965.5747203726. The cubic root of 727142220 is about 899.2348311287.

Adding to 727142220 its reverse (22241727), we get a palindrome (749383947).

The spelling of 727142220 in words is "seven hundred twenty-seven million, one hundred forty-two thousand, two hundred twenty".