401530305428 has 48 divisors (see below), whose sum is σ = 807451459584. Its totient is φ = 171143940960.

The previous prime is 401530305361. The next prime is 401530305431. The reversal of 401530305428 is 824503035104.

It is a super-2 number, since 2×401530305428² (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, 46111451 + ... + 46120157.

It is an arithmetic number, because the mean of its divisors is an integer number (16821905408).

Almost surely, 2^401530305428 is an apocalyptic number.

It is an amenable number.

401530305428 is an abundant number, since it is smaller than the sum of its proper divisors (405921154156).

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

401530305428 is a wasteful number, since it uses less digits than its factorization.

401530305428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17532 (or 17530 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 35.

The spelling of 401530305428 in words is "four hundred one billion, five hundred thirty million, three hundred five thousand, four hundred twenty-eight".