864419290 has 48 divisors (see below), whose sum is σ = 1814481000. Its totient is φ = 295636992.

The previous prime is 864419287. The next prime is 864419317. The reversal of 864419290 is 92914468.

864419290 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 582884449 + 281534841 = 24143^2 + 16779^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 218046 + ... + 221974.

Almost surely, 2^864419290 is an apocalyptic number.

864419290 is an abundant number, since it is smaller than the sum of its proper divisors (950061710).

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

864419290 is a wasteful number, since it uses less digits than its factorization.

864419290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4399 (or 4392 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 43.

The square root of 864419290 is about 29401.0083160425. The cubic root of 864419290 is about 952.5946760304.

The spelling of 864419290 in words is "eight hundred sixty-four million, four hundred nineteen thousand, two hundred ninety".