1182232540 has 48 divisors (see below), whose sum is σ = 2602464480. Its totient is φ = 450616320.

The previous prime is 1182232537. The next prime is 1182232543. The reversal of 1182232540 is 452322811.

It is an interprime number because it is at equal distance from previous prime (1182232537) and next prime (1182232543).

It is a junction number, because it is equal to n+sod(n) for n = 1182232499 and 1182232508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1182232543) 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, 18496 + ... + 52024.

It is an arithmetic number, because the mean of its divisors is an integer number (54218010).

Almost surely, 2^1182232540 is an apocalyptic number.

1182232540 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 1182232540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1301232240).

1182232540 is an abundant number, since it is smaller than the sum of its proper divisors (1420231940).

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

1182232540 is a wasteful number, since it uses less digits than its factorization.

1182232540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33622 (or 33620 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 1182232540 is about 34383.6085947941. The cubic root of 1182232540 is about 1057.3878186548.

The spelling of 1182232540 in words is "one billion, one hundred eighty-two million, two hundred thirty-two thousand, five hundred forty".