401003622 has 20 divisors (see below), whose sum is σ = 898545516. Its totient is φ = 133667820.

The previous prime is 401003611. The next prime is 401003663. The reversal of 401003622 is 226300104.

It is a happy number.

401003622 is a `hidden beast` number, since 40 + 1 + 0 + 0 + 3 + 622 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 401003595 and 401003604.

It is a congruent number.

It is an unprimeable number.

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 in 9 ways as a sum of consecutive naturals, for example, 1237504 + ... + 1237827.

Almost surely, 2^401003622 is an apocalyptic number.

401003622 is an abundant number, since it is smaller than the sum of its proper divisors (497541894).

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

401003622 is a wasteful number, since it uses less digits than its factorization.

401003622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2475345 (or 2475336 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 401003622 is about 20025.0748313209. The cubic root of 401003622 is about 737.4220142378.

Adding to 401003622 its reverse (226300104), we get a palindrome (627303726).

The spelling of 401003622 in words is "four hundred one million, three thousand, six hundred twenty-two".