4545439 has 8 divisors (see below), whose sum is σ = 4672080. Its totient is φ = 4420416.

The previous prime is 4545433. The next prime is 4545449. The reversal of 4545439 is 9345454.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4545439 - 2¹⁹ = 4021151 is a prime.

It is a super-2 number, since 2×4545439² = 41322031405442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4545433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7059 + ... + 7675.

It is an arithmetic number, because the mean of its divisors is an integer number (584010).

Almost surely, 2^4545439 is an apocalyptic number.

4545439 is a deficient number, since it is larger than the sum of its proper divisors (126641).

4545439 is a wasteful number, since it uses less digits than its factorization.

4545439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 809.

The product of its digits is 43200, while the sum is 34.

The square root of 4545439 is about 2132.0035178207. The cubic root of 4545439 is about 165.6501923943.

The spelling of 4545439 in words is "four million, five hundred forty-five thousand, four hundred thirty-nine".