401300302440 has 128 divisors (see below), whose sum is σ = 1249186901760. Its totient is φ = 103047634944.

The previous prime is 401300302411. The next prime is 401300302471. The reversal of 401300302440 is 44203003104.

It is a super-2 number, since 2×401300302440² (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 31 ways as a sum of consecutive naturals, for example, 35212 + ... + 896571.

It is an arithmetic number, because the mean of its divisors is an integer number (9759272670).

Almost surely, 2^401300302440 is an apocalyptic number.

401300302440 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 401300302440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (624593450880).

401300302440 is an abundant number, since it is smaller than the sum of its proper divisors (847886599320).

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

401300302440 is a wasteful number, since it uses less digits than its factorization.

401300302440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 931931 (or 931927 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 401300302440 its reverse (44203003104), we get a palindrome (445503305544).

The spelling of 401300302440 in words is "four hundred one billion, three hundred million, three hundred two thousand, four hundred forty".