227401209 has 48 divisors (see below), whose sum is σ = 405475200. Its totient is φ = 125441568.

The previous prime is 227401201. The next prime is 227401219. The reversal of 227401209 is 902104722.

It is not a de Polignac number, because 227401209 - 2³ = 227401201 is a prime.

It is a super-2 number, since 2×227401209² = 103422619709323362, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (227401201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 35404 + ... + 41330.

It is an arithmetic number, because the mean of its divisors is an integer number (8447400).

Almost surely, 2^227401209 is an apocalyptic number.

227401209 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

227401209 is a deficient number, since it is larger than the sum of its proper divisors (178073991).

227401209 is a wasteful number, since it uses less digits than its factorization.

227401209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5979 (or 5966 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 227401209 is about 15079.8278836332. The cubic root of 227401209 is about 610.3761981152.

The spelling of 227401209 in words is "two hundred twenty-seven million, four hundred one thousand, two hundred nine".