4520990 has 16 divisors (see below), whose sum is σ = 8170848. Its totient is φ = 1801056.

The previous prime is 4520983. The next prime is 4521001. The reversal of 4520990 is 990254.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2159 + ... + 3701.

It is an arithmetic number, because the mean of its divisors is an integer number (510678).

Almost surely, 2^4520990 is an apocalyptic number.

4520990 is a deficient number, since it is larger than the sum of its proper divisors (3649858).

4520990 is a wasteful number, since it uses less digits than its factorization.

4520990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1843.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 4520990 is about 2126.2619782143. The cubic root of 4520990 is about 165.3526586339.

The spelling of 4520990 in words is "four million, five hundred twenty thousand, nine hundred ninety".