178428801 has 8 divisors (see below), whose sum is σ = 243437920. Its totient is φ = 116186112.

The previous prime is 178428781. The next prime is 178428853. The reversal of 178428801 is 108824871.

It is a happy number.

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

It is not a de Polignac number, because 178428801 - 2⁷ = 178428673 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 178428801.

It is not an unprimeable number, because it can be changed into a prime (178428101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 691456 + ... + 691713.

It is an arithmetic number, because the mean of its divisors is an integer number (30429740).

Almost surely, 2^178428801 is an apocalyptic number.

It is an amenable number.

178428801 is a deficient number, since it is larger than the sum of its proper divisors (65009119).

178428801 is a wasteful number, since it uses less digits than its factorization.

178428801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1383215.

The product of its (nonzero) digits is 28672, while the sum is 39.

The square root of 178428801 is about 13357.7243945217. The cubic root of 178428801 is about 562.9739752216.

The spelling of 178428801 in words is "one hundred seventy-eight million, four hundred twenty-eight thousand, eight hundred one".