1405449 has 12 divisors (see below), whose sum is σ = 2137200. Its totient is φ = 887544.

The previous prime is 1405421. The next prime is 1405451. The reversal of 1405449 is 9445041.

It is not a de Polignac number, because 1405449 - 2⁹ = 1404937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1405249) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3939 + ... + 4280.

It is an arithmetic number, because the mean of its divisors is an integer number (178100).

2^1405449 is an apocalyptic number.

1405449 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1405449 is a deficient number, since it is larger than the sum of its proper divisors (731751).

1405449 is a wasteful number, since it uses less digits than its factorization.

1405449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8244 (or 8241 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 1405449 is about 1185.5163432024. The cubic root of 1405449 is about 112.0138428893.

It can be divided in two parts, 1 and 405449, that added together give a triangular number (405450 = T₉₀₀).

The spelling of 1405449 in words is "one million, four hundred five thousand, four hundred forty-nine".