1530020 has 24 divisors (see below), whose sum is σ = 3246264. Its totient is φ = 605696.

The previous prime is 1530019. The next prime is 1530037. The reversal of 1530020 is 200351.

It can be written as a sum of positive squares in 4 ways, for example, as 179776 + 1350244 = 424^2 + 1162^2 .

It is a super-2 number, since 2×1530020² = 4681922400800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1529983 and 1530010.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1922 + ... + 2598.

It is an arithmetic number, because the mean of its divisors is an integer number (135261).

2^1530020 is an apocalyptic number.

1530020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1530020 is an abundant number, since it is smaller than the sum of its proper divisors (1716244).

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

1530020 is a wasteful number, since it uses less digits than its factorization.

1530020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 799 (or 797 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 11.

The square root of 1530020 is about 1236.9397721797. The cubic root of 1530020 is about 115.2300373384.

Adding to 1530020 its reverse (200351), we get a palindrome (1730371).

The spelling of 1530020 in words is "one million, five hundred thirty thousand, twenty".