401421420019 has 32 divisors (see below), whose sum is σ = 438560179200. Its totient is φ = 365966814720.

The previous prime is 401421419977. The next prime is 401421420047. The reversal of 401421420019 is 910024124104.

It is a cyclic number.

It is not a de Polignac number, because 401421420019 - 2¹³ = 401421411827 is a prime.

It is a super-2 number, since 2×401421420019² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (401421420089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40711312 + ... + 40721170.

It is an arithmetic number, because the mean of its divisors is an integer number (13705005600).

Almost surely, 2^401421420019 is an apocalyptic number.

401421420019 is a deficient number, since it is larger than the sum of its proper divisors (37138759181).

401421420019 is a wasteful number, since it uses less digits than its factorization.

401421420019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10443.

The product of its (nonzero) digits is 2304, while the sum is 28.

The spelling of 401421420019 in words is "four hundred one billion, four hundred twenty-one million, four hundred twenty thousand, nineteen".