227997840 has 160 divisors (see below), whose sum is σ = 815590656. Its totient is φ = 51609600.

The previous prime is 227997823. The next prime is 227997841. The reversal of 227997840 is 48799722.

227997840 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 227997840.

It is not an unprimeable number, because it can be changed into a prime (227997841) 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, 189240 + ... + 190440.

Almost surely, 2^227997840 is an apocalyptic number.

227997840 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 227997840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (407795328).

227997840 is an abundant number, since it is smaller than the sum of its proper divisors (587592816).

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

227997840 is a wasteful number, since it uses less digits than its factorization.

227997840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1337 (or 1331 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 48.

The square root of 227997840 is about 15099.5973456248. The cubic root of 227997840 is about 610.9095452287.

The spelling of 227997840 in words is "two hundred twenty-seven million, nine hundred ninety-seven thousand, eight hundred forty".