1081420210 has 32 divisors (see below), whose sum is σ = 2187440640. Its totient is φ = 381931968.

The previous prime is 1081420159. The next prime is 1081420229. The reversal of 1081420210 is 120241801.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 177850 + ... + 183829.

It is an arithmetic number, because the mean of its divisors is an integer number (68357520).

Almost surely, 2^1081420210 is an apocalyptic number.

1081420210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1081420210 is an abundant number, since it is smaller than the sum of its proper divisors (1106020430).

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

1081420210 is a wasteful number, since it uses less digits than its factorization.

1081420210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361722.

The product of its (nonzero) digits is 128, while the sum is 19.

The square root of 1081420210 is about 32884.9541583989. The cubic root of 1081420210 is about 1026.4350978589.

The spelling of 1081420210 in words is "one billion, eighty-one million, four hundred twenty thousand, two hundred ten".