401705000 has 40 divisors (see below), whose sum is σ = 941206530. Its totient is φ = 160680000.

The previous prime is 401704993. The next prime is 401705021. The reversal of 401705000 is 507104.

It is a happy number.

It can be written as a sum of positive squares in 5 ways, for example, as 40780996 + 360924004 = 6386^2 + 18998^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×401705000² = 322733814050000000, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 401705000.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 35171 + ... + 45170.

Almost surely, 2^401705000 is an apocalyptic number.

401705000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

401705000 is an abundant number, since it is smaller than the sum of its proper divisors (539501530).

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

401705000 is an equidigital number, since it uses as much as digits as its factorization.

401705000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80367 (or 80348 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 17.

The square root of 401705000 is about 20042.5796742834. The cubic root of 401705000 is about 737.8516947508.

The spelling of 401705000 in words is "four hundred one million, seven hundred five thousand".