228671040 has 224 divisors, whose sum is σ = 795747456. Its totient is φ = 55296000.

The previous prime is 228671011. The next prime is 228671041. The reversal of 228671040 is 40176822.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 228670989 and 228671007.

It is not an unprimeable number, because it can be changed into a prime (228671041) 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, 910915 + ... + 911165.

It is an arithmetic number, because the mean of its divisors is an integer number (3552444).

Almost surely, 2^228671040 is an apocalyptic number.

228671040 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 228671040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (397873728).

228671040 is an abundant number, since it is smaller than the sum of its proper divisors (567076416).

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

228671040 is a wasteful number, since it uses less digits than its factorization.

228671040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357 (or 347 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 228671040 is about 15121.8728998759. The cubic root of 228671040 is about 611.5102237177.

The spelling of 228671040 in words is "two hundred twenty-eight million, six hundred seventy-one thousand, forty".