1180420 has 12 divisors (see below), whose sum is σ = 2478924. Its totient is φ = 472160.

The previous prime is 1180409. The next prime is 1180423. The reversal of 1180420 is 240811.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 391876 + 788544 = 626^2 + 888^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1180394 and 1180403.

It is not an unprimeable number, because it can be changed into a prime (1180423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29491 + ... + 29530.

It is an arithmetic number, because the mean of its divisors is an integer number (206577).

2^1180420 is an apocalyptic number.

1180420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1180420 is an abundant number, since it is smaller than the sum of its proper divisors (1298504).

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

1180420 is a wasteful number, since it uses less digits than its factorization.

1180420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59030 (or 59028 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 1180420 is about 1086.4713525906. The cubic root of 1180420 is about 105.6847164160.

It can be divided in two parts, 1180 and 420, that added together give a square (1600 = 40²).

The spelling of 1180420 in words is "one million, one hundred eighty thousand, four hundred twenty".