1156740 has 48 divisors (see below), whose sum is σ = 3490368. Its totient is φ = 284544.

The previous prime is 1156721. The next prime is 1156741. The reversal of 1156740 is 476511.

It is a self number, because there is not a number n which added to its sum of digits gives 1156740.

It is not an unprimeable number, because it can be changed into a prime (1156741) 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, 39 + ... + 1521.

It is an arithmetic number, because the mean of its divisors is an integer number (72716).

2^1156740 is an apocalyptic number.

1156740 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 1156740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1745184).

1156740 is an abundant number, since it is smaller than the sum of its proper divisors (2333628).

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

1156740 is a wasteful number, since it uses less digits than its factorization.

1156740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1508 (or 1506 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 1156740 is about 1075.5184796181. The cubic root of 1156740 is about 104.9732358089.

The spelling of 1156740 in words is "one million, one hundred fifty-six thousand, seven hundred forty".