1044140 has 48 divisors (see below), whose sum is σ = 2413152. Its totient is φ = 377856.

The previous prime is 1044139. The next prime is 1044149. The reversal of 1044140 is 414401.

It is not an unprimeable number, because it can be changed into a prime (1044149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12539 + ... + 12621.

It is an arithmetic number, because the mean of its divisors is an integer number (50274).

2^1044140 is an apocalyptic number.

1044140 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 1044140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1206576).

1044140 is an abundant number, since it is smaller than the sum of its proper divisors (1369012).

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

1044140 is a wasteful number, since it uses less digits than its factorization.

1044140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146 (or 144 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 1044140 is about 1021.8316886846. The cubic root of 1044140 is about 101.4502008453.

Adding to 1044140 its reverse (414401), we get a palindrome (1458541).

The spelling of 1044140 in words is "one million, forty-four thousand, one hundred forty".