401018069 has 8 divisors (see below), whose sum is σ = 410417280. Its totient is φ = 391727776.

The previous prime is 401018039. The next prime is 401018081. The reversal of 401018069 is 960810104.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 401018069 - 2²⁸ = 132582613 is a prime.

It is a super-2 number, since 2×401018069² = 321630983328977522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401018039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19757 + ... + 34530.

It is an arithmetic number, because the mean of its divisors is an integer number (51302160).

Almost surely, 2^401018069 is an apocalyptic number.

It is an amenable number.

401018069 is a deficient number, since it is larger than the sum of its proper divisors (9399211).

401018069 is an equidigital number, since it uses as much as digits as its factorization.

401018069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54459.

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 401018069 is about 20025.4355508189. The cubic root of 401018069 is about 737.4308698585.

The spelling of 401018069 in words is "four hundred one million, eighteen thousand, sixty-nine".