1144620 has 36 divisors (see below), whose sum is σ = 3472560. Its totient is φ = 305184.

The previous prime is 1144607. The next prime is 1144621. The reversal of 1144620 is 264411.

1144620 is a `hidden beast` number, since 1 + 1 + 44 + 620 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1144593 and 1144602.

It is not an unprimeable number, because it can be changed into a prime (1144621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3000 + ... + 3359.

It is an arithmetic number, because the mean of its divisors is an integer number (96460).

2^1144620 is an apocalyptic number.

1144620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1144620 is an abundant number, since it is smaller than the sum of its proper divisors (2327940).

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

1144620 is a wasteful number, since it uses less digits than its factorization.

1144620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6374 (or 6369 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1144620 is about 1069.8691508778. The cubic root of 1144620 is about 104.6053210420.

It can be divided in two parts, 1144 and 620, that added together give a square (1764 = 42²).

The spelling of 1144620 in words is "one million, one hundred forty-four thousand, six hundred twenty".