402204001 has 8 divisors (see below), whose sum is σ = 406910504. Its totient is φ = 397509120.

The previous prime is 402203999. The next prime is 402204017. The reversal of 402204001 is 100402204.

It can be written as a sum of positive squares in 4 ways, for example, as 45900625 + 356303376 = 6775^2 + 18876^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 402204001 - 2¹ = 402203999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (402204031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80311 + ... + 85171.

It is an arithmetic number, because the mean of its divisors is an integer number (50863813).

Almost surely, 2^402204001 is an apocalyptic number.

It is an amenable number.

402204001 is a deficient number, since it is larger than the sum of its proper divisors (4706503).

402204001 is an equidigital number, since it uses as much as digits as its factorization.

402204001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5811.

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 402204001 is about 20055.0243330693. The cubic root of 402204001 is about 738.1570899895.

Adding to 402204001 its reverse (100402204), we get a palindrome (502606205).

The spelling of 402204001 in words is "four hundred two million, two hundred four thousand, one".