4280409 has 12 divisors (see below), whose sum is σ = 7066176. Its totient is φ = 2445912.

The previous prime is 4280407. The next prime is 4280417. The reversal of 4280409 is 9040824.

It is not a de Polignac number, because 4280409 - 2¹ = 4280407 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4280407) 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, 33909 + ... + 34034.

It is an arithmetic number, because the mean of its divisors is an integer number (588848).

Almost surely, 2^4280409 is an apocalyptic number.

It is an amenable number.

4280409 is a deficient number, since it is larger than the sum of its proper divisors (2785767).

4280409 is a wasteful number, since it uses less digits than its factorization.

4280409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67956 (or 67953 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 4280409 is about 2068.9149330023. The cubic root of 4280409 is about 162.3659991953.

The spelling of 4280409 in words is "four million, two hundred eighty thousand, four hundred nine".