1152420 has 24 divisors (see below), whose sum is σ = 3226944. Its totient is φ = 307296.

The previous prime is 1152419. The next prime is 1152421. The reversal of 1152420 is 242511.

It is an interprime number because it is at equal distance from previous prime (1152419) and next prime (1152421).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1152420.

It is not an unprimeable number, because it can be changed into a prime (1152421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9544 + ... + 9663.

It is an arithmetic number, because the mean of its divisors is an integer number (134456).

2^1152420 is an apocalyptic number.

1152420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1152420 is an abundant number, since it is smaller than the sum of its proper divisors (2074524).

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

1152420 is a wasteful number, since it uses less digits than its factorization.

1152420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19219 (or 19217 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 1152420 is about 1073.5082673180. The cubic root of 1152420 is about 104.8423939356.

Adding to 1152420 its reverse (242511), we get a palindrome (1394931).

Subtracting from 1152420 its reverse (242511), we obtain a palindrome (909909).

The spelling of 1152420 in words is "one million, one hundred fifty-two thousand, four hundred twenty".