1220481036 has 72 divisors (see below), whose sum is σ = 3352294400. Its totient is φ = 372975840.

The previous prime is 1220481029. The next prime is 1220481061. The reversal of 1220481036 is 6301840221.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7576 + ... + 49983.

Almost surely, 2^1220481036 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1220481036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1676147200).

1220481036 is an abundant number, since it is smaller than the sum of its proper divisors (2131813364).

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

1220481036 is a wasteful number, since it uses less digits than its factorization.

1220481036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57619 (or 57614 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 1220481036 is about 34935.3837248140. The cubic root of 1220481036 is about 1068.6701491999.

The spelling of 1220481036 in words is "one billion, two hundred twenty million, four hundred eighty-one thousand, thirty-six".