1073611220 has 96 divisors (see below), whose sum is σ = 2561836032. Its totient is φ = 377520000.

The previous prime is 1073611171. The next prime is 1073611223. The reversal of 1073611220 is 221163701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1073611223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 824570 + ... + 825870.

It is an arithmetic number, because the mean of its divisors is an integer number (26685792).

Almost surely, 2^1073611220 is an apocalyptic number.

1073611220 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 1073611220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1280918016).

1073611220 is an abundant number, since it is smaller than the sum of its proper divisors (1488224812).

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

1073611220 is a wasteful number, since it uses less digits than its factorization.

1073611220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1374 (or 1350 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 1073611220 is about 32766.0070805095. The cubic root of 1073611220 is about 1023.9584804231.

Adding to 1073611220 its reverse (221163701), we get a palindrome (1294774921).

The spelling of 1073611220 in words is "one billion, seventy-three million, six hundred eleven thousand, two hundred twenty".