864434448 has 60 divisors (see below), whose sum is σ = 2421844620. Its totient is φ = 287831808.

The previous prime is 864434437. The next prime is 864434471. The reversal of 864434448 is 844434468.

It can be written as a sum of positive squares in 2 ways, for example, as 78641424 + 785793024 = 8868^2 + 28032^2 .

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 156990 + ... + 162402.

It is an arithmetic number, because the mean of its divisors is an integer number (40364077).

Almost surely, 2^864434448 is an apocalyptic number.

It is an amenable number.

864434448 is an abundant number, since it is smaller than the sum of its proper divisors (1557410172).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

864434448 is a wasteful number, since it uses less digits than its factorization.

864434448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6536 (or 6527 counting only the distinct ones).

The product of its digits is 1179648, while the sum is 45.

The square root of 864434448 is about 29401.2660951871. The cubic root of 864434448 is about 952.6002440635.

The spelling of 864434448 in words is "eight hundred sixty-four million, four hundred thirty-four thousand, four hundred forty-eight".