1158040 has 64 divisors (see below), whose sum is σ = 2993760. Its totient is φ = 399360.

The previous prime is 1158037. The next prime is 1158071. The reversal of 1158040 is 408511.

It is a junction number, because it is equal to n+sod(n) for n = 1157999 and 1158017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8775 + ... + 8905.

2^1158040 is an apocalyptic number.

1158040 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 1158040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1496880).

1158040 is an abundant number, since it is smaller than the sum of its proper divisors (1835720).

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

1158040 is a wasteful number, since it uses less digits than its factorization.

1158040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172 (or 168 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 1158040 is about 1076.1226695874. The cubic root of 1158040 is about 105.0125457421.

The spelling of 1158040 in words is "one million, one hundred fifty-eight thousand, forty".