401501064 has 64 divisors (see below), whose sum is σ = 1057161600. Its totient is φ = 126821376.

The previous prime is 401501033. The next prime is 401501071. The reversal of 401501064 is 460105104.

It is a super-2 number, since 2×401501064² = 322406208786264192, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 401501064.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 56832 + ... + 63504.

It is an arithmetic number, because the mean of its divisors is an integer number (16518150).

Almost surely, 2^401501064 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 401501064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (528580800).

401501064 is an abundant number, since it is smaller than the sum of its proper divisors (655660536).

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

401501064 is a wasteful number, since it uses less digits than its factorization.

401501064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6814 (or 6810 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 401501064 is about 20037.4914597611. The cubic root of 401501064 is about 737.7268104082.

Adding to 401501064 its reverse (460105104), we get a palindrome (861606168).

It can be divided in two parts, 40150 and 1064, that added together give a palindrome (41214).

The spelling of 401501064 in words is "four hundred one million, five hundred one thousand, sixty-four".