1182224640 has 72 divisors (see below), whose sum is σ = 3775742208. Its totient is φ = 315258880.

The previous prime is 1182224639. The next prime is 1182224657. The reversal of 1182224640 is 464222811.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 1182224598 and 1182224607.

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, 150096 + ... + 157775.

It is an arithmetic number, because the mean of its divisors is an integer number (52440864).

Almost surely, 2^1182224640 is an apocalyptic number.

1182224640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1182224640 is an abundant number, since it is smaller than the sum of its proper divisors (2593517568).

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

1182224640 is an equidigital number, since it uses as much as digits as its factorization.

1182224640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307895 (or 307881 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 1182224640 is about 34383.4937142810. The cubic root of 1182224640 is about 1057.3854633984.

The spelling of 1182224640 in words is "one billion, one hundred eighty-two million, two hundred twenty-four thousand, six hundred forty".