394002353 has 4 divisors (see below), whose sum is σ = 417178980. Its totient is φ = 370825728.

The previous prime is 394002347. The next prime is 394002361. The reversal of 394002353 is 353200493.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 353200493 = 103 ⋅3429131.

It can be written as a sum of positive squares in 2 ways, for example, as 208715809 + 185286544 = 14447^2 + 13612^2 .

It is a cyclic number.

It is not a de Polignac number, because 394002353 - 2¹⁸ = 393740209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (394002853) 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, 11588288 + ... + 11588321.

It is an arithmetic number, because the mean of its divisors is an integer number (104294745).

Almost surely, 2^394002353 is an apocalyptic number.

It is an amenable number.

394002353 is a deficient number, since it is larger than the sum of its proper divisors (23176627).

394002353 is a wasteful number, since it uses less digits than its factorization.

394002353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23176626.

The product of its (nonzero) digits is 9720, while the sum is 29.

The square root of 394002353 is about 19849.4925124044. The cubic root of 394002353 is about 733.1051524006.

The spelling of 394002353 in words is "three hundred ninety-four million, two thousand, three hundred fifty-three".