864154224 has 80 divisors (see below), whose sum is σ = 2484736800. Its totient is φ = 287553024.

The previous prime is 864154211. The next prime is 864154261. The reversal of 864154224 is 422451468.

864154224 is a `hidden beast` number, since 8 + 641 + 5 + 4 + 2 + 2 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 315292 + ... + 318020.

It is an arithmetic number, because the mean of its divisors is an integer number (31059210).

Almost surely, 2^864154224 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 864154224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1242368400).

864154224 is an abundant number, since it is smaller than the sum of its proper divisors (1620582576).

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

864154224 is a wasteful number, since it uses less digits than its factorization.

864154224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3479 (or 3467 counting only the distinct ones).

The product of its digits is 61440, while the sum is 36.

The square root of 864154224 is about 29396.5001998537. The cubic root of 864154224 is about 952.4972980269.

The spelling of 864154224 in words is "eight hundred sixty-four million, one hundred fifty-four thousand, two hundred twenty-four".