164770040 has 32 divisors (see below), whose sum is σ = 371105280. Its totient is φ = 65841792.

The previous prime is 164769989. The next prime is 164770043. The reversal of 164770040 is 40077461.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 164769985 and 164770012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164770043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65282 + ... + 67758.

It is an arithmetic number, because the mean of its divisors is an integer number (11597040).

Almost surely, 2^164770040 is an apocalyptic number.

164770040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

164770040 is an abundant number, since it is smaller than the sum of its proper divisors (206335240).

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

164770040 is a wasteful number, since it uses less digits than its factorization.

164770040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4151 (or 4147 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 164770040 is about 12836.2782768215. The cubic root of 164770040 is about 548.2257315020.

The spelling of 164770040 in words is "one hundred sixty-four million, seven hundred seventy thousand, forty".