401068821 has 8 divisors (see below), whose sum is σ = 537115104. Its totient is φ = 266200880.

The previous prime is 401068819. The next prime is 401068823. The reversal of 401068821 is 128860104.

It is an interprime number because it is at equal distance from previous prime (401068819) and next prime (401068823).

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

It is a cyclic number.

It is not a de Polignac number, because 401068821 - 2¹ = 401068819 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401068823) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 293790 + ... + 295151.

It is an arithmetic number, because the mean of its divisors is an integer number (67139388).

Almost surely, 2^401068821 is an apocalyptic number.

It is an amenable number.

401068821 is a deficient number, since it is larger than the sum of its proper divisors (136046283).

401068821 is a wasteful number, since it uses less digits than its factorization.

401068821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 589171.

The product of its (nonzero) digits is 3072, while the sum is 30.

The square root of 401068821 is about 20026.7026991465. The cubic root of 401068821 is about 737.4619777774.

The spelling of 401068821 in words is "four hundred one million, sixty-eight thousand, eight hundred twenty-one".