402394205 has 6 divisors (see below), whose sum is σ = 482926878. Its totient is φ = 321879480.

The previous prime is 402394183. The next prime is 402394207. The reversal of 402394205 is 502493204.

402394205 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 321915364 + 80478841 = 17942^2 + 8971^2 .

It is not a de Polignac number, because 402394205 - 2¹⁴ = 402377821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402394207) 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 5 ways as a sum of consecutive naturals, for example, 40370 + ... + 49340.

It is an arithmetic number, because the mean of its divisors is an integer number (80487813).

Almost surely, 2^402394205 is an apocalyptic number.

It is an amenable number.

402394205 is a deficient number, since it is larger than the sum of its proper divisors (80532673).

402394205 is an frugal number, since it uses more digits than its factorization.

402394205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17947 (or 8976 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 402394205 is about 20059.7658261506. The cubic root of 402394205 is about 738.2734308717.

It can be divided in two parts, 40239 and 4205, that added together give a palindrome (44444).

The spelling of 402394205 in words is "four hundred two million, three hundred ninety-four thousand, two hundred five".