401853803 has 16 divisors (see below), whose sum is σ = 464042880. Its totient is φ = 344687616.

The previous prime is 401853757. The next prime is 401853817. The reversal of 401853803 is 308358104.

It is a happy number.

It is not a de Polignac number, because 401853803 - 2¹⁰ = 401852779 is a prime.

It is a super-2 number, since 2×401853803² = 322972957971125618, 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 401853803.

It is not an unprimeable number, because it can be changed into a prime (401853853) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5951 + ... + 28967.

It is an arithmetic number, because the mean of its divisors is an integer number (29002680).

Almost surely, 2^401853803 is an apocalyptic number.

401853803 is a deficient number, since it is larger than the sum of its proper divisors (62189077).

401853803 is a wasteful number, since it uses less digits than its factorization.

401853803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23126.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 401853803 is about 20046.2915024201. The cubic root of 401853803 is about 737.9427906143.

The spelling of 401853803 in words is "four hundred one million, eight hundred fifty-three thousand, eight hundred three".