394375045 has 16 divisors (see below), whose sum is σ = 488233728. Its totient is φ = 305588160.

The previous prime is 394375021. The next prime is 394375049. The reversal of 394375045 is 540573493.

It is a happy number.

It is not a de Polignac number, because 394375045 - 2⁵ = 394375013 is a prime.

It is a super-2 number, since 2×394375045² = 311063352237504050, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 394374989 and 394375007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394375049) 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, 37300 + ... + 46690.

It is an arithmetic number, because the mean of its divisors is an integer number (30514608).

Almost surely, 2^394375045 is an apocalyptic number.

It is an amenable number.

394375045 is a deficient number, since it is larger than the sum of its proper divisors (93858683).

394375045 is a wasteful number, since it uses less digits than its factorization.

394375045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9660.

The product of its (nonzero) digits is 226800, while the sum is 40.

The square root of 394375045 is about 19858.8782412300. The cubic root of 394375045 is about 733.3362308196.

The spelling of 394375045 in words is "three hundred ninety-four million, three hundred seventy-five thousand, forty-five".