401423020 has 48 divisors (see below), whose sum is σ = 865418400. Its totient is φ = 156349440.

The previous prime is 401423003. The next prime is 401423021. The reversal of 401423020 is 20324104.

It is a super-3 number, since 3×401423020³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 401422985 and 401423003.

It is not an unprimeable number, because it can be changed into a prime (401423021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127060 + ... + 130180.

It is an arithmetic number, because the mean of its divisors is an integer number (18029550).

Almost surely, 2^401423020 is an apocalyptic number.

It is an amenable number.

401423020 is an abundant number, since it is smaller than the sum of its proper divisors (463995380).

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

401423020 is a wasteful number, since it uses less digits than its factorization.

401423020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3298 (or 3296 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 401423020 is about 20035.5439157513. The cubic root of 401423020 is about 737.6790073949.

Adding to 401423020 its reverse (20324104), we get a palindrome (421747124).

The spelling of 401423020 in words is "four hundred one million, four hundred twenty-three thousand, twenty".