4378049 has 4 divisors (see below), whose sum is σ = 4714836. Its totient is φ = 4041264.

The previous prime is 4378019. The next prime is 4378057. The reversal of 4378049 is 9408734.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9408734 = 2 ⋅4704367.

It can be written as a sum of positive squares in 2 ways, for example, as 2582449 + 1795600 = 1607^2 + 1340^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4378049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4378009) 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, 168374 + ... + 168399.

It is an arithmetic number, because the mean of its divisors is an integer number (1178709).

Almost surely, 2^4378049 is an apocalyptic number.

It is an amenable number.

4378049 is a deficient number, since it is larger than the sum of its proper divisors (336787).

4378049 is a wasteful number, since it uses less digits than its factorization.

4378049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336786.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 4378049 is about 2092.3787897988. The cubic root of 4378049 is about 163.5913009006.

The spelling of 4378049 in words is "four million, three hundred seventy-eight thousand, forty-nine".