227973018 has 64 divisors (see below), whose sum is σ = 563834880. Its totient is φ = 59838912.

The previous prime is 227973017. The next prime is 227973047. The reversal of 227973018 is 810379722.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (227973017) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 129621 + ... + 131367.

It is an arithmetic number, because the mean of its divisors is an integer number (8809920).

Almost surely, 2^227973018 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 227973018, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (281917440).

227973018 is an abundant number, since it is smaller than the sum of its proper divisors (335861862).

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

227973018 is a wasteful number, since it uses less digits than its factorization.

227973018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2011.

The product of its (nonzero) digits is 42336, while the sum is 39.

The square root of 227973018 is about 15098.7753808049. The cubic root of 227973018 is about 610.8873746283.

The spelling of 227973018 in words is "two hundred twenty-seven million, nine hundred seventy-three thousand, eighteen".