1020213244 has 24 divisors (see below), whose sum is σ = 1801790928. Its totient is φ = 505430400.

The previous prime is 1020213241. The next prime is 1020213253. The reversal of 1020213244 is 4423120201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020213241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 356419 + ... + 359269.

It is an arithmetic number, because the mean of its divisors is an integer number (75074622).

Almost surely, 2^1020213244 is an apocalyptic number.

It is an amenable number.

1020213244 is a deficient number, since it is larger than the sum of its proper divisors (781577684).

1020213244 is a wasteful number, since it uses less digits than its factorization.

1020213244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3645 (or 3643 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 1020213244 is about 31940.7771351919. Note that the first 3 decimals coincide. The cubic root of 1020213244 is about 1006.6928537745.

Adding to 1020213244 its reverse (4423120201), we get a palindrome (5443333445).

The spelling of 1020213244 in words is "one billion, twenty million, two hundred thirteen thousand, two hundred forty-four".