920449 has 4 divisors (see below), whose sum is σ = 945364. Its totient is φ = 895536.

The previous prime is 920443. The next prime is 920467. The reversal of 920449 is 944029.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 330625 + 589824 = 575^2 + 768^2 .

It is a cyclic number.

It is not a de Polignac number, because 920449 - 2³ = 920441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (920441) 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, 12402 + ... + 12475.

It is an arithmetic number, because the mean of its divisors is an integer number (236341).

2⁹²⁰⁴⁴⁹ is an apocalyptic number.

It is an amenable number.

920449 is a deficient number, since it is larger than the sum of its proper divisors (24915).

920449 is a wasteful number, since it uses less digits than its factorization.

920449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24914.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 920449 is about 959.4003335417. The cubic root of 920449 is about 97.2747022364.

It can be divided in two parts, 920 and 449, that added together give a square (1369 = 37²).

The spelling of 920449 in words is "nine hundred twenty thousand, four hundred forty-nine".