394089051 has 16 divisors (see below), whose sum is σ = 560115200. Its totient is φ = 245744928.

The previous prime is 394089049. The next prime is 394089119. The reversal of 394089051 is 150980493.

It is not a de Polignac number, because 394089051 - 2¹ = 394089049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (394089151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39256 + ... + 48261.

It is an arithmetic number, because the mean of its divisors is an integer number (35007200).

Almost surely, 2^394089051 is an apocalyptic number.

394089051 is a deficient number, since it is larger than the sum of its proper divisors (166026149).

394089051 is a wasteful number, since it uses less digits than its factorization.

394089051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87618.

The product of its (nonzero) digits is 38880, while the sum is 39.

The square root of 394089051 is about 19851.6762768286. The cubic root of 394089051 is about 733.1589203444.

The spelling of 394089051 in words is "three hundred ninety-four million, eighty-nine thousand, fifty-one".