4505920 has 28 divisors (see below), whose sum is σ = 10730484. Its totient is φ = 1802240.

The previous prime is 4505899. The next prime is 4505929. The reversal of 4505920 is 295054.

It can be written as a sum of positive squares in 2 ways, for example, as 2742336 + 1763584 = 1656^2 + 1328^2 .

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4505929) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6721 + ... + 7360.

Almost surely, 2^4505920 is an apocalyptic number.

4505920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4505920 is an abundant number, since it is smaller than the sum of its proper divisors (6224564).

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

4505920 is a wasteful number, since it uses less digits than its factorization.

4505920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14098 (or 14088 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 4505920 is about 2122.7152423253. The cubic root of 4505920 is about 165.1687285324.

The spelling of 4505920 in words is "four million, five hundred five thousand, nine hundred twenty".