401344402 has 8 divisors (see below), whose sum is σ = 618287436. Its totient is φ = 195248592.

The previous prime is 401344393. The next prime is 401344403. The reversal of 401344402 is 204443104.

It can be written as a sum of positive squares in 2 ways, for example, as 396049801 + 5294601 = 19901^2 + 2301^2 .

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

It is a super-2 number, since 2×401344402² = 322154658033475208, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (401344403) 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, 2711713 + ... + 2711860.

Almost surely, 2^401344402 is an apocalyptic number.

401344402 is a deficient number, since it is larger than the sum of its proper divisors (216943034).

401344402 is a wasteful number, since it uses less digits than its factorization.

401344402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5423612.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 401344402 is about 20033.5818564729. The cubic root of 401344402 is about 737.6308465340.

Adding to 401344402 its reverse (204443104), we get a palindrome (605787506).

The spelling of 401344402 in words is "four hundred one million, three hundred forty-four thousand, four hundred two".