401444402 has 4 divisors (see below), whose sum is σ = 602166606. Its totient is φ = 200722200.

The previous prime is 401444401. The next prime is 401444411. The reversal of 401444402 is 204444104.

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

It can be written as a sum of positive squares in only one way, i.e., 306985441 + 94458961 = 17521^2 + 9719^2 .

It is a super-2 number, since 2×401444402² = 322315215794275208, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (401444401) 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 as a sum of consecutive naturals, namely, 100361099 + ... + 100361102.

Almost surely, 2^401444402 is an apocalyptic number.

401444402 is a deficient number, since it is larger than the sum of its proper divisors (200722204).

401444402 is a wasteful number, since it uses less digits than its factorization.

401444402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200722203.

The product of its (nonzero) digits is 2048, while the sum is 23.

The square root of 401444402 is about 20036.0775103312. The cubic root of 401444402 is about 737.6921047774.

Adding to 401444402 its reverse (204444104), we get a palindrome (605888506).

The spelling of 401444402 in words is "four hundred one million, four hundred forty-four thousand, four hundred two".