185485020 has 48 divisors (see below), whose sum is σ = 593553408. Its totient is φ = 42396480.

The previous prime is 185485007. The next prime is 185485031. The reversal of 185485020 is 20584581.

185485020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 220396 + ... + 221235.

It is an arithmetic number, because the mean of its divisors is an integer number (12365696).

Almost surely, 2^185485020 is an apocalyptic number.

185485020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

185485020 is an abundant number, since it is smaller than the sum of its proper divisors (408068388).

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

185485020 is a wasteful number, since it uses less digits than its factorization.

185485020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441650 (or 441648 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 33.

The square root of 185485020 is about 13619.2885276728. The cubic root of 185485020 is about 570.2994425409.

The spelling of 185485020 in words is "one hundred eighty-five million, four hundred eighty-five thousand, twenty".