402203441 has 4 divisors (see below), whose sum is σ = 402352500. Its totient is φ = 402054384.

The previous prime is 402203437. The next prime is 402203447. The reversal of 402203441 is 144302204.

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 169000000 + 233203441 = 13000^2 + 15271^2 .

It is a cyclic number.

It is not a de Polignac number, because 402203441 - 2² = 402203437 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (402203447) 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, 70406 + ... + 75903.

It is an arithmetic number, because the mean of its divisors is an integer number (100588125).

Almost surely, 2^402203441 is an apocalyptic number.

It is an amenable number.

402203441 is a deficient number, since it is larger than the sum of its proper divisors (149059).

402203441 is a wasteful number, since it uses less digits than its factorization.

402203441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149058.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 402203441 is about 20055.0103714758. The cubic root of 402203441 is about 738.1567474036.

Adding to 402203441 its reverse (144302204), we get a palindrome (546505645).

The spelling of 402203441 in words is "four hundred two million, two hundred three thousand, four hundred forty-one".