1164420 has 36 divisors (see below), whose sum is σ = 3532620. Its totient is φ = 310464.

The previous prime is 1164419. The next prime is 1164431. The reversal of 1164420 is 244611.

1164420 is a `hidden beast` number, since 1 + 1 + 644 + 20 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 207936 + 956484 = 456^2 + 978^2 .

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 plaindrome in base 14.

It is a zygodrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 1164393 and 1164402.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3055 + ... + 3414.

2^1164420 is an apocalyptic number.

1164420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1164420 is an abundant number, since it is smaller than the sum of its proper divisors (2368200).

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

1164420 is a wasteful number, since it uses less digits than its factorization.

1164420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6484 (or 6479 counting only the distinct ones).

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

The square root of 1164420 is about 1079.0829439853. The cubic root of 1164420 is about 105.2050415160.

It can be divided in two parts, 11644 and 20, that added together give a square (11664 = 108²).

The spelling of 1164420 in words is "one million, one hundred sixty-four thousand, four hundred twenty".