1401441888 has 192 divisors, whose sum is σ = 4786532352. Its totient is φ = 348142080.

The previous prime is 1401441887. The next prime is 1401441947. The reversal of 1401441888 is 8881441041.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401441883) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 165895 + ... + 174137.

It is an arithmetic number, because the mean of its divisors is an integer number (24929856).

Almost surely, 2^1401441888 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 1401441888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2393266176).

1401441888 is an abundant number, since it is smaller than the sum of its proper divisors (3385090464).

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

1401441888 is a wasteful number, since it uses less digits than its factorization.

1401441888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8297 (or 8289 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 39.

The square root of 1401441888 is about 37435.8369480368. The cubic root of 1401441888 is about 1119.0728636804.

The spelling of 1401441888 in words is "one billion, four hundred one million, four hundred forty-one thousand, eight hundred eighty-eight".