401289029560 has 96 divisors (see below), whose sum is σ = 958997482560. Its totient is φ = 151097985792.

The previous prime is 401289029549. The next prime is 401289029563. The reversal of 401289029560 is 65920982104.

It is a super-2 number, since 2×401289029560² (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 401289029560.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401289029563) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2178577 + ... + 2355583.

It is an arithmetic number, because the mean of its divisors is an integer number (9989557110).

Almost surely, 2^401289029560 is an apocalyptic number.

401289029560 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 401289029560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (479498741280).

401289029560 is an abundant number, since it is smaller than the sum of its proper divisors (557708453000).

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

401289029560 is a wasteful number, since it uses less digits than its factorization.

401289029560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177213 (or 177190 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 46.

The spelling of 401289029560 in words is "four hundred one billion, two hundred eighty-nine million, twenty-nine thousand, five hundred sixty".