4526409 has 4 divisors (see below), whose sum is σ = 6035216. Its totient is φ = 3017604.

The previous prime is 4526393. The next prime is 4526411. The reversal of 4526409 is 9046254.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 4526409 - 2⁴ = 4526393 is a prime.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4526419) 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, 754399 + ... + 754404.

It is an arithmetic number, because the mean of its divisors is an integer number (1508804).

Almost surely, 2^4526409 is an apocalyptic number.

It is an amenable number.

4526409 is a deficient number, since it is larger than the sum of its proper divisors (1508807).

4526409 is a wasteful number, since it uses less digits than its factorization.

4526409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1508806.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 4526409 is about 2127.5358986396. The cubic root of 4526409 is about 165.4186978780.

The spelling of 4526409 in words is "four million, five hundred twenty-six thousand, four hundred nine".