1401888 has 48 divisors (see below), whose sum is σ = 3900960. Its totient is φ = 439296.

The previous prime is 1401857. The next prime is 1401937. The reversal of 1401888 is 8881041.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1203 + ... + 2061.

It is an arithmetic number, because the mean of its divisors is an integer number (81270).

2^1401888 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 1401888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1950480).

1401888 is an abundant number, since it is smaller than the sum of its proper divisors (2499072).

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

1401888 is a wasteful number, since it uses less digits than its factorization.

1401888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 889 (or 881 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 30.

The square root of 1401888 is about 1184.0135134364. The cubic root of 1401888 is about 111.9191593510.

The spelling of 1401888 in words is "one million, four hundred one thousand, eight hundred eighty-eight".