438464835 has 12 divisors (see below), whose sum is σ = 760005792. Its totient is φ = 233847888.

The previous prime is 438464821. The next prime is 438464839. The reversal of 438464835 is 538464834.

It is not a de Polignac number, because 438464835 - 2¹⁰ = 438463811 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 9743663 = 438464835 / (4 + 3 + 8 + 4 + 6 + 4 + 8 + 3 + 5).

It is not an unprimeable number, because it can be changed into a prime (438464839) 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, 4871787 + ... + 4871876.

It is an arithmetic number, because the mean of its divisors is an integer number (63333816).

Almost surely, 2^438464835 is an apocalyptic number.

438464835 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

438464835 is a deficient number, since it is larger than the sum of its proper divisors (321540957).

438464835 is a wasteful number, since it uses less digits than its factorization.

438464835 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9743674 (or 9743671 counting only the distinct ones).

The product of its digits is 1105920, while the sum is 45.

The square root of 438464835 is about 20939.5519293035. The cubic root of 438464835 is about 759.7048917723.

Subtracting 438464835 from its reverse (538464834), we obtain a palindrome (99999999).

The spelling of 438464835 in words is "four hundred thirty-eight million, four hundred sixty-four thousand, eight hundred thirty-five".