1401120 has 144 divisors (see below), whose sum is σ = 5503680. Its totient is φ = 317952.

The previous prime is 1401119. The next prime is 1401131. The reversal of 1401120 is 211041.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is an Ulam number.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 10011 + ... + 10149.

It is an arithmetic number, because the mean of its divisors is an integer number (38220).

2^1401120 is an apocalyptic number.

1401120 is a gapful number since it is divisible by the number (10) 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 1401120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2751840).

1401120 is an abundant number, since it is smaller than the sum of its proper divisors (4102560).

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

1401120 is a wasteful number, since it uses less digits than its factorization.

1401120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167 (or 156 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 1401120 is about 1183.6891483831. The cubic root of 1401120 is about 111.8987179617.

Adding to 1401120 its reverse (211041), we get a palindrome (1612161).

It can be divided in two parts, 1401 and 120, that added together give a square (1521 = 39²).

The spelling of 1401120 in words is "one million, four hundred one thousand, one hundred twenty".