401310502420 has 12 divisors (see below), whose sum is σ = 842752055124. Its totient is φ = 160524200960.

The previous prime is 401310502409. The next prime is 401310502427. The reversal of 401310502420 is 24205013104.

It can be written as a sum of positive squares in 2 ways, for example, as 179533553796 + 221776948624 = 423714^2 + 470932^2 .

It is a super-2 number, since 2×401310502420² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 401310502391 and 401310502400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401310502427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10032762541 + ... + 10032762580.

It is an arithmetic number, because the mean of its divisors is an integer number (70229337927).

Almost surely, 2^401310502420 is an apocalyptic number.

It is an amenable number.

401310502420 is an abundant number, since it is smaller than the sum of its proper divisors (441441552704).

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

401310502420 is a wasteful number, since it uses less digits than its factorization.

401310502420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20065525130 (or 20065525128 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

Adding to 401310502420 its reverse (24205013104), we get a palindrome (425515515524).

The spelling of 401310502420 in words is "four hundred one billion, three hundred ten million, five hundred two thousand, four hundred twenty".