401421244 has 12 divisors (see below), whose sum is σ = 802842544. Its totient is φ = 172037664.

The previous prime is 401421217. The next prime is 401421247. The reversal of 401421244 is 442124104.

401421244 is an admirable number.

It is a super-2 number, since 2×401421244² = 322278030269015072, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401421247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7168209 + ... + 7168264.

Almost surely, 2^401421244 is an apocalyptic number.

It is an amenable number.

401421244 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

401421244 is a wasteful number, since it uses less digits than its factorization.

401421244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14336484 (or 14336482 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

The square root of 401421244 is about 20035.4995944698. The cubic root of 401421244 is about 737.6779194986.

Adding to 401421244 its reverse (442124104), we get a palindrome (843545348).

The spelling of 401421244 in words is "four hundred one million, four hundred twenty-one thousand, two hundred forty-four".