1292020 has 12 divisors (see below), whose sum is σ = 2713284. Its totient is φ = 516800.

The previous prime is 1292009. The next prime is 1292023. The reversal of 1292020 is 202921.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 853776 + 438244 = 924^2 + 662^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1291985 and 1292003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1292023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32281 + ... + 32320.

It is an arithmetic number, because the mean of its divisors is an integer number (226107).

2^1292020 is an apocalyptic number.

1292020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1292020 is an abundant number, since it is smaller than the sum of its proper divisors (1421264).

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

1292020 is a wasteful number, since it uses less digits than its factorization.

1292020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64610 (or 64608 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1292020 is about 1136.6705767284. The cubic root of 1292020 is about 108.9155140285.

Adding to 1292020 its reverse (202921), we get a palindrome (1494941).

The spelling of 1292020 in words is "one million, two hundred ninety-two thousand, twenty".