920403449 has 8 divisors (see below), whose sum is σ = 1054289280. Its totient is φ = 787117536.

The previous prime is 920403427. The next prime is 920403469. The reversal of 920403449 is 944304029.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 920403449 - 2²⁴ = 903626233 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (920403469) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146684 + ... + 152829.

It is an arithmetic number, because the mean of its divisors is an integer number (131786160).

Almost surely, 2^920403449 is an apocalyptic number.

It is an amenable number.

920403449 is a deficient number, since it is larger than the sum of its proper divisors (133885831).

920403449 is a wasteful number, since it uses less digits than its factorization.

920403449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299959.

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 920403449 is about 30338.1517070503. The cubic root of 920403449 is about 972.7309757279.

The spelling of 920403449 in words is "nine hundred twenty million, four hundred three thousand, four hundred forty-nine".