164609004 has 48 divisors (see below), whose sum is σ = 450829568. Its totient is φ = 45759168.

The previous prime is 164608987. The next prime is 164609009. The reversal of 164609004 is 400906461.

It is a super-2 number, since 2×164609004² = 54192248395744032, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (164609009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23374 + ... + 29589.

Almost surely, 2^164609004 is an apocalyptic number.

164609004 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

164609004 is an abundant number, since it is smaller than the sum of its proper divisors (286220564).

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

164609004 is a wasteful number, since it uses less digits than its factorization.

164609004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53014 (or 53012 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 164609004 is about 12830.0040530001. The cubic root of 164609004 is about 548.0470726964.

The spelling of 164609004 in words is "one hundred sixty-four million, six hundred nine thousand, four".