439310745 has 24 divisors (see below), whose sum is σ = 762073416. Its totient is φ = 234114048.

The previous prime is 439310743. The next prime is 439310779. The reversal of 439310745 is 547013934.

It can be written as a sum of positive squares in 4 ways, for example, as 15280281 + 424030464 = 3909^2 + 20592^2 .

It is not a de Polignac number, because 439310745 - 2¹ = 439310743 is a prime.

It is not an unprimeable number, because it can be changed into a prime (439310743) 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, 68809 + ... + 74921.

It is an arithmetic number, because the mean of its divisors is an integer number (31753059).

Almost surely, 2^439310745 is an apocalyptic number.

439310745 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

439310745 is a deficient number, since it is larger than the sum of its proper divisors (322762671).

439310745 is a wasteful number, since it uses less digits than its factorization.

439310745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7721 (or 7718 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 439310745 is about 20959.7410527898. The cubic root of 439310745 is about 760.1931324726.

The spelling of 439310745 in words is "four hundred thirty-nine million, three hundred ten thousand, seven hundred forty-five".