1820528 has 10 divisors (see below), whose sum is σ = 3527304. Its totient is φ = 910256.

The previous prime is 1820527. The next prime is 1820549. The reversal of 1820528 is 8250281.

It is a junction number, because it is equal to n+sod(n) for n = 1820497 and 1820506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1820521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56876 + ... + 56907.

2^1820528 is an apocalyptic number.

It is an amenable number.

1820528 is a deficient number, since it is larger than the sum of its proper divisors (1706776).

1820528 is a wasteful number, since it uses less digits than its factorization.

1820528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113791 (or 113785 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 26.

The square root of 1820528 is about 1349.2694319520. The cubic root of 1820528 is about 122.1047206205.

The spelling of 1820528 in words is "one million, eight hundred twenty thousand, five hundred twenty-eight".