1400120 has 64 divisors (see below), whose sum is σ = 3499200. Its totient is φ = 501760.

The previous prime is 1400107. The next prime is 1400131. The reversal of 1400120 is 210041.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a junction number, because it is equal to n+sod(n) for n = 1400098 and 1400107.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19685 + ... + 19755.

It is an arithmetic number, because the mean of its divisors is an integer number (54675).

2^1400120 is an apocalyptic number.

1400120 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 1400120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1749600).

1400120 is an abundant number, since it is smaller than the sum of its proper divisors (2099080).

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

1400120 is a wasteful number, since it uses less digits than its factorization.

1400120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128 (or 124 counting only the distinct ones).

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

The square root of 1400120 is about 1183.2666647886. The cubic root of 1400120 is about 111.8720903709.

Adding to 1400120 its reverse (210041), we get a palindrome (1610161).

The spelling of 1400120 in words is "one million, four hundred thousand, one hundred twenty".