1652020 has 12 divisors (see below), whose sum is σ = 3469284. Its totient is φ = 660800.

The previous prime is 1652011. The next prime is 1652033. The reversal of 1652020 is 202561.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 524176 + 1127844 = 724^2 + 1062^2 .

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 1651985 and 1652003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41281 + ... + 41320.

It is an arithmetic number, because the mean of its divisors is an integer number (289107).

2^1652020 is an apocalyptic number.

1652020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1652020 is an abundant number, since it is smaller than the sum of its proper divisors (1817264).

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

1652020 is a wasteful number, since it uses less digits than its factorization.

1652020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82610 (or 82608 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 1652020 is about 1285.3093012968. The cubic root of 1652020 is about 118.2147768933.

Adding to 1652020 its reverse (202561), we get a palindrome (1854581).

The spelling of 1652020 in words is "one million, six hundred fifty-two thousand, twenty".