117384228 has 180 divisors, whose sum is σ = 353249820. Its totient is φ = 33747840.

The previous prime is 117384221. The next prime is 117384277. The reversal of 117384228 is 822483711.

It can be written as a sum of positive squares in 2 ways, for example, as 37675044 + 79709184 = 6138^2 + 8928^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 117384192 and 117384201.

It is not an unprimeable number, because it can be changed into a prime (117384221) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 3786573 + ... + 3786603.

It is an arithmetic number, because the mean of its divisors is an integer number (1962499).

Almost surely, 2^117384228 is an apocalyptic number.

117384228 is a gapful number since it is divisible by the number (18) 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 117384228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176624910).

117384228 is an abundant number, since it is smaller than the sum of its proper divisors (235865592).

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

117384228 is a wasteful number, since it uses less digits than its factorization.

117384228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120 (or 78 counting only the distinct ones).

The product of its digits is 21504, while the sum is 36.

The square root of 117384228 is about 10834.4002141328. The cubic root of 117384228 is about 489.6321381729.

The spelling of 117384228 in words is "one hundred seventeen million, three hundred eighty-four thousand, two hundred twenty-eight".