401402212404 has 12 divisors (see below), whose sum is σ = 936605162304. Its totient is φ = 133800737464.

The previous prime is 401402212363. The next prime is 401402212417. The reversal of 401402212404 is 404212204104.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×401402212404² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16725092172 + ... + 16725092195.

It is an arithmetic number, because the mean of its divisors is an integer number (78050430192).

Almost surely, 2^401402212404 is an apocalyptic number.

It is an amenable number.

401402212404 is an abundant number, since it is smaller than the sum of its proper divisors (535202949900).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

401402212404 is a wasteful number, since it uses less digits than its factorization.

401402212404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33450184374 (or 33450184372 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

Adding to 401402212404 its reverse (404212204104), we get a palindrome (805614416508).

The spelling of 401402212404 in words is "four hundred one billion, four hundred two million, two hundred twelve thousand, four hundred four".