4457409 has 16 divisors (see below), whose sum is σ = 6519744. Its totient is φ = 2686400.

The previous prime is 4457407. The next prime is 4457413. The reversal of 4457409 is 9047544.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 4457409 - 2¹ = 4457407 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a self number, because there is not a number n which added to its sum of digits gives 4457409.

It is not an unprimeable number, because it can be changed into a prime (4457407) 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 15 ways as a sum of consecutive naturals, for example, 9439 + ... + 9899.

It is an arithmetic number, because the mean of its divisors is an integer number (407484).

Almost surely, 2^4457409 is an apocalyptic number.

It is an amenable number.

4457409 is a deficient number, since it is larger than the sum of its proper divisors (2062335).

4457409 is a wasteful number, since it uses less digits than its factorization.

4457409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 768.

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 4457409 is about 2111.2576820464. The cubic root of 4457409 is about 164.5738498123.

The spelling of 4457409 in words is "four million, four hundred fifty-seven thousand, four hundred nine".