401420443134420 has 144 divisors (see below), whose sum is σ = 1230211592850240. Its totient is φ = 105940463044608.

The previous prime is 401420443134407. The next prime is 401420443134427. The reversal of 401420443134420 is 24431344024104.

401420443134420 is a `hidden beast` number, since 4 + 0 + 1 + 4 + 204 + 4 + 3 + 1 + 3 + 442 + 0 = 666.

It is a super-2 number, since 2×401420443134420² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401420443134427) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2154802599 + ... + 2154988881.

It is an arithmetic number, because the mean of its divisors is an integer number (8543136061460).

Almost surely, 2^{401420443134420} is an apocalyptic number.

It is an amenable number.

401420443134420 is an abundant number, since it is smaller than the sum of its proper divisors (828791149715820).

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

401420443134420 is a wasteful number, since it uses less digits than its factorization.

401420443134420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309814 (or 309809 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 36.

Adding to 401420443134420 its reverse (24431344024104), we get a palindrome (425851787158524).

The spelling of 401420443134420 in words is "four hundred one trillion, four hundred twenty billion, four hundred forty-three million, one hundred thirty-four thousand, four hundred twenty".