394144077 has 16 divisors (see below), whose sum is σ = 554037120. Its totient is φ = 248742912.

The previous prime is 394144027. The next prime is 394144081. The reversal of 394144077 is 770441493.

It is not a de Polignac number, because 394144077 - 2⁷ = 394143949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394144027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22752 + ... + 36137.

It is an arithmetic number, because the mean of its divisors is an integer number (34627320).

Almost surely, 2^394144077 is an apocalyptic number.

It is an amenable number.

394144077 is a deficient number, since it is larger than the sum of its proper divisors (159893043).

394144077 is a wasteful number, since it uses less digits than its factorization.

394144077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59012.

The product of its (nonzero) digits is 84672, while the sum is 39.

The square root of 394144077 is about 19853.0621567556. The cubic root of 394144077 is about 733.1930420107.

The spelling of 394144077 in words is "three hundred ninety-four million, one hundred forty-four thousand, seventy-seven".