401479439460 has 96 divisors (see below), whose sum is σ = 1265896525824. Its totient is φ = 94188720000.

The previous prime is 401479439441. The next prime is 401479439461. The reversal of 401479439460 is 64934974104.

It is a super-2 number, since 2×401479439460² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (401479439461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9790866 + ... + 9831785.

It is an arithmetic number, because the mean of its divisors is an integer number (13186422144).

Almost surely, 2^401479439460 is an apocalyptic number.

It is an amenable number.

401479439460 is an abundant number, since it is smaller than the sum of its proper divisors (864417086364).

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

401479439460 is a wasteful number, since it uses less digits than its factorization.

401479439460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19622705 (or 19622703 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 51.

The spelling of 401479439460 in words is "four hundred one billion, four hundred seventy-nine million, four hundred thirty-nine thousand, four hundred sixty".