401685041 has 6 divisors (see below), whose sum is σ = 419909490. Its totient is φ = 384219968.

The previous prime is 401685029. The next prime is 401685047. The reversal of 401685041 is 140586104.

It can be written as a sum of positive squares in only one way, i.e., 293608225 + 108076816 = 17135^2 + 10396^2 .

It is a de Polignac number, because none of the positive numbers 2^k-401685041 is a prime.

It is a super-2 number, since 2×401685041² = 322701744326343362, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 401684995 and 401685013.

It is not an unprimeable number, because it can be changed into a prime (401685047) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 379136 + ... + 380193.

It is an arithmetic number, because the mean of its divisors is an integer number (69984915).

Almost surely, 2^401685041 is an apocalyptic number.

It is an amenable number.

401685041 is a deficient number, since it is larger than the sum of its proper divisors (18224449).

401685041 is an equidigital number, since it uses as much as digits as its factorization.

401685041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 759375 (or 759352 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 401685041 is about 20042.0817531513. The cubic root of 401685041 is about 737.8394743188.

The spelling of 401685041 in words is "four hundred one million, six hundred eighty-five thousand, forty-one".