1020220044 has 48 divisors (see below), whose sum is σ = 2461541376. Its totient is φ = 328536000.

The previous prime is 1020220043. The next prime is 1020220049. The reversal of 1020220044 is 4400220201.

It is not an unprimeable number, because it can be changed into a prime (1020220043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 249819 + ... + 253869.

It is an arithmetic number, because the mean of its divisors is an integer number (51282112).

Almost surely, 2^1020220044 is an apocalyptic number.

It is an amenable number.

1020220044 is an abundant number, since it is smaller than the sum of its proper divisors (1441321332).

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

1020220044 is a wasteful number, since it uses less digits than its factorization.

1020220044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4766 (or 4764 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 1020220044 is about 31940.8835820176. The cubic root of 1020220044 is about 1006.6950903971.

Adding to 1020220044 its reverse (4400220201), we get a palindrome (5420440245).

The spelling of 1020220044 in words is "one billion, twenty million, two hundred twenty thousand, forty-four".