4549905 has 16 divisors (see below), whose sum is σ = 8088960. Its totient is φ = 2426544.

The previous prime is 4549861. The next prime is 4549933. The reversal of 4549905 is 5099454.

It is not a de Polignac number, because 4549905 - 2⁶ = 4549841 is a prime.

4549905 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 4549905.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16717 + ... + 16986.

It is an arithmetic number, because the mean of its divisors is an integer number (505560).

Almost surely, 2^4549905 is an apocalyptic number.

4549905 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4549905 is a deficient number, since it is larger than the sum of its proper divisors (3539055).

4549905 is a wasteful number, since it uses less digits than its factorization.

4549905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33717 (or 33711 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 4549905 is about 2133.0506323104. The cubic root of 4549905 is about 165.7044263640.

The spelling of 4549905 in words is "four million, five hundred forty-nine thousand, nine hundred five".