1162540 has 24 divisors (see below), whose sum is σ = 2508912. Its totient is φ = 452160.

The previous prime is 1162537. The next prime is 1162541. The reversal of 1162540 is 452611.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1162541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46 + ... + 1525.

It is an arithmetic number, because the mean of its divisors is an integer number (104538).

2^1162540 is an apocalyptic number.

1162540 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 1162540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1254456).

1162540 is an abundant number, since it is smaller than the sum of its proper divisors (1346372).

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

1162540 is a wasteful number, since it uses less digits than its factorization.

1162540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1617 (or 1615 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 1162540 is about 1078.2114820387. The cubic root of 1162540 is about 105.1483918485.

The spelling of 1162540 in words is "one million, one hundred sixty-two thousand, five hundred forty".