394549043 has 4 divisors (see below), whose sum is σ = 450913200. Its totient is φ = 338184888.

The previous prime is 394548983. The next prime is 394549069. The reversal of 394549043 is 340945493.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 394549043 - 2⁸ = 394548787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (394549643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28182068 + ... + 28182081.

It is an arithmetic number, because the mean of its divisors is an integer number (112728300).

Almost surely, 2^394549043 is an apocalyptic number.

394549043 is a deficient number, since it is larger than the sum of its proper divisors (56364157).

394549043 is an equidigital number, since it uses as much as digits as its factorization.

394549043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56364156.

The product of its (nonzero) digits is 233280, while the sum is 41.

The square root of 394549043 is about 19863.2586198740. The cubic root of 394549043 is about 733.4440641102. Note that the first 3 decimals are identical.

The spelling of 394549043 in words is "three hundred ninety-four million, five hundred forty-nine thousand, forty-three".