164603730 has 32 divisors (see below), whose sum is σ = 395409600. Its totient is φ = 43854272.

The previous prime is 164603711. The next prime is 164603737. The reversal of 164603730 is 37306461.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (164603737) 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, 46876 + ... + 50264.

It is an arithmetic number, because the mean of its divisors is an integer number (12356550).

Almost surely, 2^164603730 is an apocalyptic number.

164603730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

164603730 is an abundant number, since it is smaller than the sum of its proper divisors (230805870).

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

164603730 is a wasteful number, since it uses less digits than its factorization.

164603730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5018.

The product of its (nonzero) digits is 9072, while the sum is 30.

The square root of 164603730 is about 12829.7985175138. The cubic root of 164603730 is about 548.0412195716.

The spelling of 164603730 in words is "one hundred sixty-four million, six hundred three thousand, seven hundred thirty".