164401450 has 12 divisors (see below), whose sum is σ = 305786790. Its totient is φ = 65760560.

The previous prime is 164401429. The next prime is 164401459. The reversal of 164401450 is 54104461.

It can be written as a sum of positive squares in 3 ways, for example, as 152547201 + 11854249 = 12351^2 + 3443^2 .

It is a super-3 number, since 3×164401450³ (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (164401459) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1643965 + ... + 1644064.

Almost surely, 2^164401450 is an apocalyptic number.

164401450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

164401450 is a deficient number, since it is larger than the sum of its proper divisors (141385340).

164401450 is a wasteful number, since it uses less digits than its factorization.

164401450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3288041 (or 3288036 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 164401450 is about 12821.9128838095. The cubic root of 164401450 is about 547.8166332887.

The spelling of 164401450 in words is "one hundred sixty-four million, four hundred one thousand, four hundred fifty".