401340613020 has 48 divisors (see below), whose sum is σ = 1123783355520. Its totient is φ = 107021340736.

The previous prime is 401340612979. The next prime is 401340613039. The reversal of 401340613020 is 20316043104.

It is a super-2 number, since 2×401340613020² (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 15 ways as a sum of consecutive naturals, for example, 3249151 + ... + 3370409.

It is an arithmetic number, because the mean of its divisors is an integer number (23412153240).

Almost surely, 2^401340613020 is an apocalyptic number.

It is an amenable number.

401340613020 is an abundant number, since it is smaller than the sum of its proper divisors (722442742500).

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

401340613020 is a wasteful number, since it uses less digits than its factorization.

401340613020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176434 (or 176432 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 401340613020 its reverse (20316043104), we get a palindrome (421656656124).

The spelling of 401340613020 in words is "four hundred one billion, three hundred forty million, six hundred thirteen thousand, twenty".