1073051220 has 144 divisors (see below), whose sum is σ = 3360692160. Its totient is φ = 255062016.

The previous prime is 1073051209. The next prime is 1073051251. The reversal of 1073051220 is 221503701.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 327832 + ... + 331088.

It is an arithmetic number, because the mean of its divisors is an integer number (23338140).

Almost surely, 2^1073051220 is an apocalyptic number.

1073051220 is a gapful number since it is divisible by the number (10) 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 1073051220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1680346080).

1073051220 is an abundant number, since it is smaller than the sum of its proper divisors (2287640940).

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

1073051220 is a wasteful number, since it uses less digits than its factorization.

1073051220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3322 (or 3303 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 1073051220 is about 32757.4605242836. The cubic root of 1073051220 is about 1023.7804158170.

Adding to 1073051220 its reverse (221503701), we get a palindrome (1294554921).

The spelling of 1073051220 in words is "one billion, seventy-three million, fifty-one thousand, two hundred twenty".