853490520 has 80 divisors (see below), whose sum is σ = 2868687360. Its totient is φ = 227596608.

The previous prime is 853490489. The next prime is 853490579. The reversal of 853490520 is 25094358.

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 19 ways as a sum of consecutive naturals, for example, 128472 + ... + 134951.

It is an arithmetic number, because the mean of its divisors is an integer number (35858592).

Almost surely, 2^853490520 is an apocalyptic number.

It is an amenable number.

853490520 is an abundant number, since it is smaller than the sum of its proper divisors (2015196840).

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

853490520 is a wasteful number, since it uses less digits than its factorization.

853490520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263446 (or 263433 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 853490520 is about 29214.5600685685. The cubic root of 853490520 is about 948.5631168095.

The spelling of 853490520 in words is "eight hundred fifty-three million, four hundred ninety thousand, five hundred twenty".