1182055640 has 32 divisors (see below), whose sum is σ = 2716217280. Its totient is φ = 462761472.

The previous prime is 1182055627. The next prime is 1182055657. The reversal of 1182055640 is 465502811.

It is a junction number, because it is equal to n+sod(n) for n = 1182055597 and 1182055606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 312497 + ... + 316256.

It is an arithmetic number, because the mean of its divisors is an integer number (84881790).

Almost surely, 2^1182055640 is an apocalyptic number.

1182055640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1182055640 is an abundant number, since it is smaller than the sum of its proper divisors (1534161640).

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

1182055640 is a wasteful number, since it uses less digits than its factorization.

1182055640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628811 (or 628807 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 32.

The square root of 1182055640 is about 34381.0360518702. The cubic root of 1182055640 is about 1057.3350762855.

The spelling of 1182055640 in words is "one billion, one hundred eighty-two million, fifty-five thousand, six hundred forty".