860449392 has 360 divisors, whose sum is σ = 2881482240. Its totient is φ = 248054400.

The previous prime is 860449357. The next prime is 860449397. The reversal of 860449392 is 293944068.

860449392 is a `hidden beast` number, since 8 + 604 + 4 + 9 + 39 + 2 = 666.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (860449397) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 14583859 + ... + 14583917.

Almost surely, 2^860449392 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 860449392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1440741120).

860449392 is an abundant number, since it is smaller than the sum of its proper divisors (2021032848).

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

860449392 is a wasteful number, since it uses less digits than its factorization.

860449392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135 (or 106 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The square root of 860449392 is about 29333.4176665454. The cubic root of 860449392 is about 951.1341549639.

The spelling of 860449392 in words is "eight hundred sixty million, four hundred forty-nine thousand, three hundred ninety-two".