1220938044 has 48 divisors (see below), whose sum is σ = 2923802112. Its totient is φ = 396329472.

The previous prime is 1220938031. The next prime is 1220938073. The reversal of 1220938044 is 4408390221.

It is a junction number, because it is equal to n+sod(n) for n = 1220937996 and 1220938014.

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, 178797 + ... + 185499.

It is an arithmetic number, because the mean of its divisors is an integer number (60912544).

Almost surely, 2^1220938044 is an apocalyptic number.

It is an amenable number.

1220938044 is an abundant number, since it is smaller than the sum of its proper divisors (1702864068).

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

1220938044 is a wasteful number, since it uses less digits than its factorization.

1220938044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7106 (or 7104 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 1220938044 is about 34941.9238737652. The cubic root of 1220938044 is about 1068.8035200721.

The spelling of 1220938044 in words is "one billion, two hundred twenty million, nine hundred thirty-eight thousand, forty-four".