401530503344 has 10 divisors (see below), whose sum is σ = 777965350260. Its totient is φ = 200765251664.

The previous prime is 401530503313. The next prime is 401530503347. The reversal of 401530503344 is 443305035104.

It is a super-2 number, since 2×401530503344² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 401530503344.

It is not an unprimeable number, because it can be changed into a prime (401530503347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12547828214 + ... + 12547828245.

It is an arithmetic number, because the mean of its divisors is an integer number (77796535026).

Almost surely, 2^401530503344 is an apocalyptic number.

It is an amenable number.

401530503344 is a deficient number, since it is larger than the sum of its proper divisors (376434846916).

401530503344 is a wasteful number, since it uses less digits than its factorization.

401530503344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25095656467 (or 25095656461 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 32.

Adding to 401530503344 its reverse (443305035104), we get a palindrome (844835538448).

The spelling of 401530503344 in words is "four hundred one billion, five hundred thirty million, five hundred three thousand, three hundred forty-four".