227269640 has 64 divisors (see below), whose sum is σ = 579700800. Its totient is φ = 79494912.

The previous prime is 227269639. The next prime is 227269657. The reversal of 227269640 is 46962722.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a junction number, because it is equal to n+sod(n) for n = 227269594 and 227269603.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1622 + ... + 21381.

It is an arithmetic number, because the mean of its divisors is an integer number (9057825).

Almost surely, 2^227269640 is an apocalyptic number.

227269640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 227269640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (289850400).

227269640 is an abundant number, since it is smaller than the sum of its proper divisors (352431160).

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

227269640 is a wasteful number, since it uses less digits than its factorization.

227269640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23046 (or 23042 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 227269640 is about 15075.4648352878. The cubic root of 227269640 is about 610.2584589598.

The spelling of 227269640 in words is "two hundred twenty-seven million, two hundred sixty-nine thousand, six hundred forty".