227640439 has 16 divisors (see below), whose sum is σ = 248371200. Its totient is φ = 207390816.

The previous prime is 227640437. The next prime is 227640451. The reversal of 227640439 is 934046722.

227640439 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 227640439 - 2¹ = 227640437 is a prime.

It is a super-2 number, since 2×227640439² = 103640338936225442, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 227640398 and 227640407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (227640431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 475002 + ... + 475480.

It is an arithmetic number, because the mean of its divisors is an integer number (15523200).

Almost surely, 2^227640439 is an apocalyptic number.

227640439 is a deficient number, since it is larger than the sum of its proper divisors (20730761).

227640439 is a wasteful number, since it uses less digits than its factorization.

227640439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 894.

The product of its (nonzero) digits is 72576, while the sum is 37.

The square root of 227640439 is about 15087.7579182594. The cubic root of 227640439 is about 610.5901652017.

The spelling of 227640439 in words is "two hundred twenty-seven million, six hundred forty thousand, four hundred thirty-nine".