164409892 has 12 divisors (see below), whose sum is σ = 287908236. Its totient is φ = 82150400.

The previous prime is 164409853. The next prime is 164409899. The reversal of 164409892 is 298904461.

It can be written as a sum of positive squares in 2 ways, for example, as 156150016 + 8259876 = 12496^2 + 2874^2 .

It is a super-3 number, since 3×164409892³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (164409899) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6433 + ... + 19240.

It is an arithmetic number, because the mean of its divisors is an integer number (23992353).

Almost surely, 2^164409892 is an apocalyptic number.

It is an amenable number.

164409892 is a deficient number, since it is larger than the sum of its proper divisors (123498344).

164409892 is a wasteful number, since it uses less digits than its factorization.

164409892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27278 (or 27276 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 43.

The square root of 164409892 is about 12822.2420816330. The cubic root of 164409892 is about 547.8260099068.

The spelling of 164409892 in words is "one hundred sixty-four million, four hundred nine thousand, eight hundred ninety-two".