4505990 has 8 divisors (see below), whose sum is σ = 8110800. Its totient is φ = 1802392.

The previous prime is 4505947. The next prime is 4505993. The reversal of 4505990 is 995054.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4505993) 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, 225290 + ... + 225309.

It is an arithmetic number, because the mean of its divisors is an integer number (1013850).

Almost surely, 2^4505990 is an apocalyptic number.

4505990 is a deficient number, since it is larger than the sum of its proper divisors (3604810).

4505990 is a wasteful number, since it uses less digits than its factorization.

4505990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450606.

The product of its (nonzero) digits is 8100, while the sum is 32.

The square root of 4505990 is about 2122.7317305774. The cubic root of 4505990 is about 165.1695838332.

The spelling of 4505990 in words is "four million, five hundred five thousand, nine hundred ninety".