178394349 has 24 divisors (see below), whose sum is σ = 279568128. Its totient is φ = 100880640.

The previous prime is 178394299. The next prime is 178394351. The reversal of 178394349 is 943493871.

It is a happy number.

It is not a de Polignac number, because 178394349 - 2¹⁹ = 177870061 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 178394298 and 178394307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (178394389) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 8004 + ... + 20514.

It is an arithmetic number, because the mean of its divisors is an integer number (11648672).

Almost surely, 2^178394349 is an apocalyptic number.

It is an amenable number.

178394349 is a deficient number, since it is larger than the sum of its proper divisors (101173779).

178394349 is a wasteful number, since it uses less digits than its factorization.

178394349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12625 (or 12618 counting only the distinct ones).

The product of its digits is 653184, while the sum is 48.

The square root of 178394349 is about 13356.4347413522. The cubic root of 178394349 is about 562.9377388671.

The spelling of 178394349 in words is "one hundred seventy-eight million, three hundred ninety-four thousand, three hundred forty-nine".