4378569 has 24 divisors (see below), whose sum is σ = 6656832. Its totient is φ = 2544480.

The previous prime is 4378559. The next prime is 4378609. The reversal of 4378569 is 9658734.

It is a happy number.

It is not a de Polignac number, because 4378569 - 2⁴ = 4378553 is a prime.

It is a super-2 number, since 2×4378569² = 38343732975522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4378569.

It is not an unprimeable number, because it can be changed into a prime (4378559) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13924 + ... + 14234.

It is an arithmetic number, because the mean of its divisors is an integer number (277368).

Almost surely, 2^4378569 is an apocalyptic number.

It is an amenable number.

4378569 is a deficient number, since it is larger than the sum of its proper divisors (2278263).

4378569 is a wasteful number, since it uses less digits than its factorization.

4378569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365 (or 346 counting only the distinct ones).

The product of its digits is 181440, while the sum is 42.

The square root of 4378569 is about 2092.5030465928. The cubic root of 4378569 is about 163.5977774620.

The spelling of 4378569 in words is "four million, three hundred seventy-eight thousand, five hundred sixty-nine".