4445490 has 32 divisors (see below), whose sum is σ = 12193920. Its totient is φ = 1016064.

The previous prime is 4445479. The next prime is 4445491. The reversal of 4445490 is 945444.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (4445491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10375 + ... + 10794.

It is an arithmetic number, because the mean of its divisors is an integer number (381060).

Almost surely, 2^4445490 is an apocalyptic number.

4445490 is an abundant number, since it is smaller than the sum of its proper divisors (7748430).

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

4445490 is a wasteful number, since it uses less digits than its factorization.

4445490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21186.

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 4445490 is about 2108.4330674698. The cubic root of 4445490 is about 164.4270300865.

It can be divided in two parts, 44454 and 90, that added together give a palindrome (44544).

The spelling of 4445490 in words is "four million, four hundred forty-five thousand, four hundred ninety".