394798045 has 8 divisors (see below), whose sum is σ = 474977880. Its totient is φ = 315024960.

The previous prime is 394798031. The next prime is 394798081. The reversal of 394798045 is 540897493.

It can be written as a sum of positive squares in 4 ways, for example, as 338724 + 394459321 = 582^2 + 19861^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 394798045 - 2¹⁵ = 394765277 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 394798045.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99546 + ... + 103435.

It is an arithmetic number, because the mean of its divisors is an integer number (59372235).

Almost surely, 2^394798045 is an apocalyptic number.

It is an amenable number.

394798045 is a deficient number, since it is larger than the sum of its proper divisors (80179835).

394798045 is a wasteful number, since it uses less digits than its factorization.

394798045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203375.

The product of its (nonzero) digits is 1088640, while the sum is 49.

The square root of 394798045 is about 19869.5255353519. The cubic root of 394798045 is about 733.5983251467.

It can be divided in two parts, 39479 and 8045, that added together give a square (47524 = 218²).

The spelling of 394798045 in words is "three hundred ninety-four million, seven hundred ninety-eight thousand, forty-five".