920520 has 48 divisors (see below), whose sum is σ = 2992860. Its totient is φ = 245376.

The previous prime is 920519. The next prime is 920539. The reversal of 920520 is 25029.

It can be written as a sum of positive squares in 2 ways, for example, as 910116 + 10404 = 954^2 + 102^2 .

It is a super-3 number, since 3×920520³ = 2340027391333824000, which contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 920493 and 920502.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 919 + ... + 1638.

2⁹²⁰⁵²⁰ is an apocalyptic number.

920520 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

920520 is an abundant number, since it is smaller than the sum of its proper divisors (2072340).

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

920520 is a wasteful number, since it uses less digits than its factorization.

920520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2574 (or 2567 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 920520 is about 959.4373351084. The cubic root of 920520 is about 97.2772033079.

Adding to 920520 its reverse (25029), we get a palindrome (945549).

The spelling of 920520 in words is "nine hundred twenty thousand, five hundred twenty".