401339642305 has 48 divisors (see below), whose sum is σ = 568896644160. Its totient is φ = 270954972288.

The previous prime is 401339642269. The next prime is 401339642317. The reversal of 401339642305 is 503246933104.

It is not a de Polignac number, because 401339642305 - 2⁷ = 401339642177 is a prime.

It is a super-2 number, since 2×401339642305² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 38389459 + ... + 38399911.

It is an arithmetic number, because the mean of its divisors is an integer number (11852013420).

Almost surely, 2^401339642305 is an apocalyptic number.

It is an amenable number.

401339642305 is a deficient number, since it is larger than the sum of its proper divisors (167557001855).

401339642305 is a wasteful number, since it uses less digits than its factorization.

401339642305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12878 (or 12871 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 40.

The spelling of 401339642305 in words is "four hundred one billion, three hundred thirty-nine million, six hundred forty-two thousand, three hundred five".