390002201 has 4 divisors (see below), whose sum is σ = 390368100. Its totient is φ = 389636304.

The previous prime is 390002167. The next prime is 390002231. The reversal of 390002201 is 102200093.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 283417225 + 106584976 = 16835^2 + 10324^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-390002201 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 390002201.

It is not an unprimeable number, because it can be changed into a prime (390002231) 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, 181346 + ... + 183483.

It is an arithmetic number, because the mean of its divisors is an integer number (97592025).

Almost surely, 2^390002201 is an apocalyptic number.

It is an amenable number.

390002201 is a deficient number, since it is larger than the sum of its proper divisors (365899).

390002201 is a wasteful number, since it uses less digits than its factorization.

390002201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365898.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 390002201 is about 19748.4733840365. The cubic root of 390002201 is about 730.6157318329.

Adding to 390002201 its reverse (102200093), we get a palindrome (492202294).

The spelling of 390002201 in words is "three hundred ninety million, two thousand, two hundred one".