401000825 has 12 divisors (see below), whose sum is σ = 501040848. Its totient is φ = 318349200.

The previous prime is 401000819. The next prime is 401000827. The reversal of 401000825 is 528000104.

It is not a de Polignac number, because 401000825 - 2¹⁰ = 400999801 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 401000797 and 401000806.

It is not an unprimeable number, because it can be changed into a prime (401000827) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 57947 + ... + 64496.

It is an arithmetic number, because the mean of its divisors is an integer number (41753404).

Almost surely, 2^401000825 is an apocalyptic number.

It is an amenable number.

401000825 is a deficient number, since it is larger than the sum of its proper divisors (100040023).

401000825 is a wasteful number, since it uses less digits than its factorization.

401000825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122584 (or 122579 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 401000825 is about 20025.0049937572. The cubic root of 401000825 is about 737.4202997278.

Adding to 401000825 its reverse (528000104), we get a palindrome (929000929).

The spelling of 401000825 in words is "four hundred one million, eight hundred twenty-five", and thus it is an aban number.