164211450 has 48 divisors (see below), whose sum is σ = 438576096. Its totient is φ = 40420800.

The previous prime is 164211409. The next prime is 164211461. The reversal of 164211450 is 54112461.

It is a happy number.

It is a super-2 number, since 2×164211450² = 53930800622205000, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 164211450.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40156 + ... + 44055.

It is an arithmetic number, because the mean of its divisors is an integer number (9137002).

Almost surely, 2^164211450 is an apocalyptic number.

164211450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

164211450 is an abundant number, since it is smaller than the sum of its proper divisors (274364646).

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

164211450 is a wasteful number, since it uses less digits than its factorization.

164211450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84239 (or 84234 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 164211450 is about 12814.5015509773. The cubic root of 164211450 is about 547.6055133271.

It can be divided in two parts, 16421 and 1450, that added together give a palindrome (17871).

The spelling of 164211450 in words is "one hundred sixty-four million, two hundred eleven thousand, four hundred fifty".