1440180 has 120 divisors (see below), whose sum is σ = 5203968. Its totient is φ = 326592.

The previous prime is 1440119. The next prime is 1440203. The reversal of 1440180 is 810441.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 11277 + ... + 11403.

2^1440180 is an apocalyptic number.

1440180 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 1440180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2601984).

1440180 is an abundant number, since it is smaller than the sum of its proper divisors (3763788).

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

1440180 is a wasteful number, since it uses less digits than its factorization.

1440180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155 (or 144 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 1440180 is about 1200.0749976564. The cubic root of 1440180 is about 112.9290284498.

The spelling of 1440180 in words is "one million, four hundred forty thousand, one hundred eighty".