117774228 has 48 divisors (see below), whose sum is σ = 322854336. Its totient is φ = 32943360.

The previous prime is 117774221. The next prime is 117774233. The reversal of 117774228 is 822477711.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117774221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32601 + ... + 36032.

It is an arithmetic number, because the mean of its divisors is an integer number (6726132).

Almost surely, 2^117774228 is an apocalyptic number.

It is an amenable number.

117774228 is an abundant number, since it is smaller than the sum of its proper divisors (205080108).

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

117774228 is a wasteful number, since it uses less digits than its factorization.

117774228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68664 (or 68662 counting only the distinct ones).

The product of its digits is 43904, while the sum is 39.

The square root of 117774228 is about 10852.3835169975. The cubic root of 117774228 is about 490.1737936894.

The spelling of 117774228 in words is "one hundred seventeen million, seven hundred seventy-four thousand, two hundred twenty-eight".