1220330976 has 96 divisors (see below), whose sum is σ = 3258571680. Its totient is φ = 399826944.

The previous prime is 1220330911. The next prime is 1220330981. The reversal of 1220330976 is 6790330221.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×1220330976² = 2978415381970225152, which contains 22 as substring.

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, 1990446 + ... + 1991058.

It is an arithmetic number, because the mean of its divisors is an integer number (33943455).

Almost surely, 2^1220330976 is an apocalyptic number.

1220330976 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1220330976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1629285840).

1220330976 is an abundant number, since it is smaller than the sum of its proper divisors (2038240704).

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

1220330976 is a wasteful number, since it uses less digits than its factorization.

1220330976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 948 (or 940 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 33.

The square root of 1220330976 is about 34933.2359795081. The cubic root of 1220330976 is about 1068.6263491979.

The spelling of 1220330976 in words is "one billion, two hundred twenty million, three hundred thirty thousand, nine hundred seventy-six".