1418140 has 48 divisors (see below), whose sum is σ = 3259872. Its totient is φ = 516096.

The previous prime is 1418119. The next prime is 1418147. The reversal of 1418140 is 418141.

It is a super-2 number, since 2×1418140² = 4022242119200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1418147) by changing a digit.

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, 14572 + ... + 14668.

It is an arithmetic number, because the mean of its divisors is an integer number (67914).

2^1418140 is an apocalyptic number.

1418140 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 1418140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1629936).

1418140 is an abundant number, since it is smaller than the sum of its proper divisors (1841732).

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

1418140 is a wasteful number, since it uses less digits than its factorization.

1418140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166 (or 164 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

The square root of 1418140 is about 1190.8568343844. The cubic root of 1418140 is about 112.3499893609.

Subtracting from 1418140 its reverse (418141), we obtain a palindrome (999999).

It can be divided in two parts, 141 and 8140, that added together give a square (8281 = 91²).

The spelling of 1418140 in words is "one million, four hundred eighteen thousand, one hundred forty".