401221804 has 6 divisors (see below), whose sum is σ = 702138164. Its totient is φ = 200610900.

The previous prime is 401221789. The next prime is 401221813. The reversal of 401221804 is 408122104.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50152722 + ... + 50152729.

Almost surely, 2^401221804 is an apocalyptic number.

It is an amenable number.

401221804 is a deficient number, since it is larger than the sum of its proper divisors (300916360).

401221804 is a wasteful number, since it uses less digits than its factorization.

401221804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100305455 (or 100305453 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

The square root of 401221804 is about 20030.5218104771. The cubic root of 401221804 is about 737.5557312667. Note that the first 3 decimals are identical.

Adding to 401221804 its reverse (408122104), we get a palindrome (809343908).

The spelling of 401221804 in words is "four hundred one million, two hundred twenty-one thousand, eight hundred four".