400420320341304 has 32 divisors (see below), whose sum is σ = 1012298562666000. Its totient is φ = 131973738538752.

The previous prime is 400420320341267. The next prime is 400420320341323. The reversal of 400420320341304 is 403143023024004.

It is a happy number.

It is a super-3 number, since 3×400420320341304³ (a number of 45 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93731346259 + ... + 93731350530.

Almost surely, 2^{400420320341304} is an apocalyptic number.

It is an amenable number.

400420320341304 is an abundant number, since it is smaller than the sum of its proper divisors (611878242324696).

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

400420320341304 is a wasteful number, since it uses less digits than its factorization.

400420320341304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187462696887 (or 187462696883 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 30.

Adding to 400420320341304 its reverse (403143023024004), we get a palindrome (803563343365308).

The spelling of 400420320341304 in words is "four hundred trillion, four hundred twenty billion, three hundred twenty million, three hundred forty-one thousand, three hundred four".