2042520 has 32 divisors (see below), whose sum is σ = 6127920. Its totient is φ = 544640.

The previous prime is 2042489. The next prime is 2042531. The reversal of 2042520 is 252402.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a plaindrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 2042520.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8391 + ... + 8630.

2^2042520 is an apocalyptic number.

2042520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2042520 is an abundant number, since it is smaller than the sum of its proper divisors (4085400).

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

2042520 is a wasteful number, since it uses less digits than its factorization.

2042520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17035 (or 17031 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 15.

The square root of 2042520 is about 1429.1675898928. The cubic root of 2042520 is about 126.8787153013.

Adding to 2042520 its reverse (252402), we get a palindrome (2294922).

The spelling of 2042520 in words is "two million, forty-two thousand, five hundred twenty".