853058640 has 360 divisors, whose sum is σ = 3280852512. Its totient is φ = 182784000.

The previous prime is 853058603. The next prime is 853058641. The reversal of 853058640 is 46850358.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (853058641) 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, 3398515 + ... + 3398765.

Almost surely, 2^853058640 is an apocalyptic number.

853058640 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 853058640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1640426256).

853058640 is an abundant number, since it is smaller than the sum of its proper divisors (2427793872).

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

853058640 is a wasteful number, since it uses less digits than its factorization.

853058640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315 (or 285 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 39.

The square root of 853058640 is about 29207.1676134472. The cubic root of 853058640 is about 948.4030937248.

The spelling of 853058640 in words is "eight hundred fifty-three million, fifty-eight thousand, six hundred forty".