1154040 has 64 divisors (see below), whose sum is σ = 3542400. Its totient is φ = 300672.

The previous prime is 1154039. The next prime is 1154047. The reversal of 1154040 is 404511.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1154047) 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, 6999 + ... + 7161.

It is an arithmetic number, because the mean of its divisors is an integer number (55350).

2^1154040 is an apocalyptic number.

1154040 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 1154040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1771200).

1154040 is an abundant number, since it is smaller than the sum of its proper divisors (2388360).

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

1154040 is a wasteful number, since it uses less digits than its factorization.

1154040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236 (or 232 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 1154040 is about 1074.2625377439. The cubic root of 1154040 is about 104.8914978949.

Adding to 1154040 its reverse (404511), we get a palindrome (1558551).

The spelling of 1154040 in words is "one million, one hundred fifty-four thousand, forty".