201486820 has 24 divisors (see below), whose sum is σ = 432964224. Its totient is φ = 78720096.

The previous prime is 201486787. The next prime is 201486821. The reversal of 201486820 is 28684102.

It is not an unprimeable number, because it can be changed into a prime (201486821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116284 + ... + 118003.

It is an arithmetic number, because the mean of its divisors is an integer number (18040176).

Almost surely, 2^201486820 is an apocalyptic number.

201486820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201486820 is an abundant number, since it is smaller than the sum of its proper divisors (231477404).

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

201486820 is a wasteful number, since it uses less digits than its factorization.

201486820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234339 (or 234337 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 31.

The square root of 201486820 is about 14194.6053132872. The cubic root of 201486820 is about 586.2491340119.

The spelling of 201486820 in words is "two hundred one million, four hundred eighty-six thousand, eight hundred twenty".