1220528094 has 32 divisors (see below), whose sum is σ = 2530704384. Its totient is φ = 392015040.

The previous prime is 1220528087. The next prime is 1220528123. The reversal of 1220528094 is 4908250221.

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, 29257 + ... + 57419.

It is an arithmetic number, because the mean of its divisors is an integer number (79084512).

Almost surely, 2^1220528094 is an apocalyptic number.

1220528094 is an abundant number, since it is smaller than the sum of its proper divisors (1310176290).

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

1220528094 is a wasteful number, since it uses less digits than its factorization.

1220528094 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28432.

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 1220528094 is about 34936.0572188677. The cubic root of 1220528094 is about 1068.6838839028.

The spelling of 1220528094 in words is "one billion, two hundred twenty million, five hundred twenty-eight thousand, ninety-four".