401852069 has 8 divisors (see below), whose sum is σ = 429257880. Its totient is φ = 374864896.

The previous prime is 401852047. The next prime is 401852081. The reversal of 401852069 is 960258104.

It can be written as a sum of positive squares in 4 ways, for example, as 330625 + 401521444 = 575^2 + 20038^2 .

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 401852069 - 2²⁴ = 385074853 is a prime.

It is a super-3 number, since 3×401852069³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401852369) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102674 + ... + 106515.

It is an arithmetic number, because the mean of its divisors is an integer number (53657235).

Almost surely, 2^401852069 is an apocalyptic number.

It is an amenable number.

401852069 is a deficient number, since it is larger than the sum of its proper divisors (27405811).

401852069 is a wasteful number, since it uses less digits than its factorization.

401852069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209319.

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 401852069 is about 20046.2482524786. The cubic root of 401852069 is about 737.9417292045.

The spelling of 401852069 in words is "four hundred one million, eight hundred fifty-two thousand, sixty-nine".