1140048 has 160 divisors (see below), whose sum is σ = 4166400. Its totient is φ = 290304.

The previous prime is 1139993. The next prime is 1140091. The reversal of 1140048 is 8400411.

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

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 1140048.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39298 + ... + 39326.

It is an arithmetic number, because the mean of its divisors is an integer number (26040).

2^1140048 is an apocalyptic number.

1140048 is a gapful number since it is divisible by the number (18) 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 1140048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2083200).

1140048 is an abundant number, since it is smaller than the sum of its proper divisors (3026352).

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

1140048 is a wasteful number, since it uses less digits than its factorization.

1140048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66 (or 54 counting only the distinct ones).

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

The square root of 1140048 is about 1067.7303030260. The cubic root of 1140048 is about 104.4658588286.

1140048 divided by its sum of digits (18) gives a palindrome (63336).

Adding to 1140048 its reverse (8400411), we get a palindrome (9540459).

The spelling of 1140048 in words is "one million, one hundred forty thousand, forty-eight".