164746228 has 6 divisors (see below), whose sum is σ = 288305906. Its totient is φ = 82373112.

The previous prime is 164746213. The next prime is 164746229. The reversal of 164746228 is 822647461.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 163277284 + 1468944 = 12778^2 + 1212^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164746229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20593275 + ... + 20593282.

Almost surely, 2^164746228 is an apocalyptic number.

It is an amenable number.

164746228 is a deficient number, since it is larger than the sum of its proper divisors (123559678).

164746228 is a wasteful number, since it uses less digits than its factorization.

164746228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41186561 (or 41186559 counting only the distinct ones).

The product of its digits is 129024, while the sum is 40.

The square root of 164746228 is about 12835.3507158940. The cubic root of 164746228 is about 548.1993209968.

The spelling of 164746228 in words is "one hundred sixty-four million, seven hundred forty-six thousand, two hundred twenty-eight".