1182720 has 176 divisors, whose sum is σ = 4716288. Its totient is φ = 245760.

The previous prime is 1182703. The next prime is 1182737. The reversal of 1182720 is 272811.

It is an interprime number because it is at equal distance from previous prime (1182703) and next prime (1182737).

It is a tau number, because it is divible by the number of its divisors (176).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107515 + ... + 107525.

2^1182720 is an apocalyptic number.

1182720 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 1182720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2358144).

1182720 is an abundant number, since it is smaller than the sum of its proper divisors (3533568).

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

1182720 is a wasteful number, since it uses less digits than its factorization.

1182720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46 (or 28 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 21.

The square root of 1182720 is about 1087.5293099499. The cubic root of 1182720 is about 105.7533126627.

Subtracting from 1182720 its reverse (272811), we obtain a palindrome (909909).

The spelling of 1182720 in words is "one million, one hundred eighty-two thousand, seven hundred twenty".