400011020533 has 16 divisors (see below), whose sum is σ = 426928969600. Its totient is φ = 373681900800.

The previous prime is 400011020503. The next prime is 400011020537. The reversal of 400011020533 is 335020110004.

It is a cyclic number.

It is not a de Polignac number, because 400011020533 - 2³³ = 391421085941 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 400011020533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400011020537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6570433 + ... + 6631033.

It is an arithmetic number, because the mean of its divisors is an integer number (26683060600).

Almost surely, 2^400011020533 is an apocalyptic number.

It is an amenable number.

400011020533 is a deficient number, since it is larger than the sum of its proper divisors (26917949067).

400011020533 is a wasteful number, since it uses less digits than its factorization.

400011020533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65452.

The product of its (nonzero) digits is 360, while the sum is 19.

Adding to 400011020533 its reverse (335020110004), we get a palindrome (735031130537).

The spelling of 400011020533 in words is "four hundred billion, eleven million, twenty thousand, five hundred thirty-three".