1220510946 has 16 divisors (see below), whose sum is σ = 2492959104. Its totient is φ = 398180784.

The previous prime is 1220510917. The next prime is 1220510947. The reversal of 1220510946 is 6490150221.

It is not an unprimeable number, because it can be changed into a prime (1220510947) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2163745 + ... + 2164308.

It is an arithmetic number, because the mean of its divisors is an integer number (155809944).

Almost surely, 2^1220510946 is an apocalyptic number.

1220510946 is an abundant number, since it is smaller than the sum of its proper divisors (1272448158).

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

1220510946 is a wasteful number, since it uses less digits than its factorization.

1220510946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4328105.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 1220510946 is about 34935.8117982107. The cubic root of 1220510946 is about 1068.6788789990.

The spelling of 1220510946 in words is "one billion, two hundred twenty million, five hundred ten thousand, nine hundred forty-six".