853641340 has 24 divisors (see below), whose sum is σ = 1810055520. Its totient is φ = 338140608.

The previous prime is 853641337. The next prime is 853641379. The reversal of 853641340 is 43146358.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 853641296 and 853641305.

It is a congruent number.

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, 205135 + ... + 209254.

It is an arithmetic number, because the mean of its divisors is an integer number (75418980).

Almost surely, 2^853641340 is an apocalyptic number.

It is an amenable number.

853641340 is an abundant number, since it is smaller than the sum of its proper divisors (956414180).

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

853641340 is a wasteful number, since it uses less digits than its factorization.

853641340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414501 (or 414499 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 853641340 is about 29217.1412016987. The cubic root of 853641340 is about 948.6189869334.

Adding to 853641340 its reverse (43146358), we get a palindrome (896787698).

The spelling of 853641340 in words is "eight hundred fifty-three million, six hundred forty-one thousand, three hundred forty".