864448420 has 24 divisors (see below), whose sum is σ = 1980373248. Its totient is φ = 314344800.

The previous prime is 864448397. The next prime is 864448441. The reversal of 864448420 is 24844468.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1964436 + ... + 1964875.

It is an arithmetic number, because the mean of its divisors is an integer number (82515552).

Almost surely, 2^864448420 is an apocalyptic number.

It is an amenable number.

864448420 is an abundant number, since it is smaller than the sum of its proper divisors (1115924828).

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

864448420 is a wasteful number, since it uses less digits than its factorization.

864448420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3929331 (or 3929329 counting only the distinct ones).

The product of its (nonzero) digits is 196608, while the sum is 40.

The square root of 864448420 is about 29401.5037030421. The cubic root of 864448420 is about 952.6053763820.

It can be divided in two parts, 86444 and 8420, that added together give a square (94864 = 308²).

The spelling of 864448420 in words is "eight hundred sixty-four million, four hundred forty-eight thousand, four hundred twenty".