164213630 has 16 divisors (see below), whose sum is σ = 337811040. Its totient is φ = 56301792.

The previous prime is 164213611. The next prime is 164213639. The reversal of 164213630 is 36312461.

It is a super-2 number, since 2×164213630² = 53932232555553800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 164213630.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164213639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1172885 + ... + 1173024.

It is an arithmetic number, because the mean of its divisors is an integer number (21113190).

Almost surely, 2^164213630 is an apocalyptic number.

164213630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

164213630 is an abundant number, since it is smaller than the sum of its proper divisors (173597410).

164213630 is a wasteful number, since it uses less digits than its factorization.

164213630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2345923.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 164213630 is about 12814.5866105778. The cubic root of 164213630 is about 547.6079365742.

The spelling of 164213630 in words is "one hundred sixty-four million, two hundred thirteen thousand, six hundred thirty".