401052805 has 16 divisors (see below), whose sum is σ = 499388400. Its totient is φ = 308938752.

The previous prime is 401052793. The next prime is 401052917. The reversal of 401052805 is 508250104.

It can be written as a sum of positive squares in 8 ways, for example, as 1292769 + 399760036 = 1137^2 + 19994^2 .

It is a de Polignac number, because none of the positive numbers 2^k-401052805 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 401052805.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6771 + ... + 29119.

It is an arithmetic number, because the mean of its divisors is an integer number (31211775).

Almost surely, 2^401052805 is an apocalyptic number.

It is an amenable number.

401052805 is a deficient number, since it is larger than the sum of its proper divisors (98335595).

401052805 is a wasteful number, since it uses less digits than its factorization.

401052805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22488.

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 401052805 is about 20026.3028290296. The cubic root of 401052805 is about 737.4521612175.

The spelling of 401052805 in words is "four hundred one million, fifty-two thousand, eight hundred five".