164400454 has 8 divisors (see below), whose sum is σ = 251847648. Its totient is φ = 80451240.

The previous prime is 164400419. The next prime is 164400461. The reversal of 164400454 is 454004461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×164400454³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 874377 + ... + 874564.

It is an arithmetic number, because the mean of its divisors is an integer number (31480956).

Almost surely, 2^164400454 is an apocalyptic number.

164400454 is a deficient number, since it is larger than the sum of its proper divisors (87447194).

164400454 is a wasteful number, since it uses less digits than its factorization.

164400454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1748990.

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 164400454 is about 12821.8740439922. The cubic root of 164400454 is about 547.8155269998.

The spelling of 164400454 in words is "one hundred sixty-four million, four hundred thousand, four hundred fifty-four".