401000002 has 16 divisors (see below), whose sum is σ = 655051320. Its totient is φ = 182996352.

The previous prime is 400999999. The next prime is 401000011. The reversal of 401000002 is 200000104.

It can be written as a sum of positive squares in 4 ways, for example, as 122744241 + 278255761 = 11079^2 + 16681^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84333 + ... + 88960.

Almost surely, 2^401000002 is an apocalyptic number.

401000002 is a deficient number, since it is larger than the sum of its proper divisors (254051318).

401000002 is a wasteful number, since it uses less digits than its factorization.

401000002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173397.

The product of its (nonzero) digits is 8, while the sum is 7.

The square root of 401000002 is about 20024.9844444384. The cubic root of 401000002 is about 737.4197952422.

Adding to 401000002 its reverse (200000104), we get a palindrome (601000106).

The spelling of 401000002 in words is "four hundred one million, two", and thus it is an aban number.