401544760 has 64 divisors (see below), whose sum is σ = 970211520. Its totient is φ = 149022720.

The previous prime is 401544721. The next prime is 401544763. The reversal of 401544760 is 67445104.

It is a super-2 number, since 2×401544760² = 322476388566915200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401544763) 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 15 ways as a sum of consecutive naturals, for example, 44122 + ... + 52438.

It is an arithmetic number, because the mean of its divisors is an integer number (15159555).

Almost surely, 2^401544760 is an apocalyptic number.

401544760 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 401544760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (485105760).

401544760 is an abundant number, since it is smaller than the sum of its proper divisors (568666760).

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

401544760 is a wasteful number, since it uses less digits than its factorization.

401544760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8416 (or 8412 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 401544760 is about 20038.5817861444. The cubic root of 401544760 is about 737.7535720985.

Adding to 401544760 its reverse (67445104), we get a palindrome (468989864).

The spelling of 401544760 in words is "four hundred one million, five hundred forty-four thousand, seven hundred sixty".