4491532 has 12 divisors (see below), whose sum is σ = 8202096. Its totient is φ = 2148080.

The previous prime is 4491503. The next prime is 4491533. The reversal of 4491532 is 2351944.

It is a self number, because there is not a number n which added to its sum of digits gives 4491532.

It is not an unprimeable number, because it can be changed into a prime (4491533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24319 + ... + 24502.

It is an arithmetic number, because the mean of its divisors is an integer number (683508).

Almost surely, 2^4491532 is an apocalyptic number.

It is an amenable number.

4491532 is a deficient number, since it is larger than the sum of its proper divisors (3710564).

4491532 is a wasteful number, since it uses less digits than its factorization.

4491532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48848 (or 48846 counting only the distinct ones).

The product of its digits is 4320, while the sum is 28.

The square root of 4491532 is about 2119.3234769615. The cubic root of 4491532 is about 164.9927391969.

It can be divided in two parts, 4 and 491532, that added together give a triangular number (491536 = T₉₉₁).

The spelling of 4491532 in words is "four million, four hundred ninety-one thousand, five hundred thirty-two".